Какие из чисел 1,4,5 являются корнями уравнения 6икс равно икс в квадрате +5. Created by SmuR1. matematika-ru

По т. Виета: x²+kx+qk=-6q=5x²-6x+5=0При коэффициенте при х₂, равном 0, х₁=1{x₁+x₂=6 => 1+x₂=6 =>x₂=6-1=5{x₁*x₂=5 => 1*x₂=5 => x₂=5Ответ: x₁=1 x₂=5Ви2003каВи2003ка1 и 56x=x²+56x-x²=5x•(6-x)=51)x=52)6-x=5-x=-6+5-x=-1x=-1:(-1)x=1Ответ:5,1Новые вопросы в Математиканужно выделить полный квадрат a) 4x²-12x+5=0; Б) 9x²-24х+15=0; B) x²-3x+2=0; Г) x²-7x+12=0 д) х² +7х+12=0;e) x²+6x+10=0; ж)х²+8x+16=0; 3) x²-10x+25=0;…и) x⁴ - 16x²=0;к) x²-20x+64=0.Решите уравнение: a) 4x²-12x+5=0; Б) 9x²-24х+15=0; B) x²-3x+2=0; Г) x²-7x+12=0 д) х² +7х+12=0;e) x²+6x+10=0; ж)х²+8x+16=0; 3) x²-10x+25=0; и) x⁴ - 16x…²=0;к) x²-20x+64=0.На сколько процентов 25 больше 203. На рис. 2 зображено рівнобедрений трикутник ABC, BM- його медіана, проведена до основи, точка D належить відрізку BM. Знайдіть відношення площі три… кутника ADC до площі трикутника АВС, якщо ВМ=5 см, а BD=4 см. СРОЧНО ДАЮ 100Магазин первому продавцу продал от 80м ткани 25%, а второму 30%. Сколько метров ткани купил первый покупатель? Второй покупатель на сколько метров мен…ьше купил чем первый? Помогите пожалуйстаУкажіть графік, який МОЖЕ бути графіком залежності S=f(P) площі правильного трикутника від його периметра Р. T Д даю 50 баловПоможіть 3,5:(х+23)=0,7В кружок по математике ходят 8 ребят: 4 мальчика и 4 девочки. Дети сидят за партами по двое, причём каждый мальчик сидит с девочкой. Для обсуждения од…ной задачи учитель хочет вызвать к доске троих ребят: двух девочек и одного мальчика. Сколькими способами учитель может выбрать детей, которые пойдут к доске, если он не хочет вызывать к доске двух ребят, сидящих за одной партой?. Пятеро друзей - Ваня, Глеб, Дима, Егор и Жора - поехали в поход. У мальчиков две палатки: одна двухместная и одна трёхместная. Сколько способов у др…узей разделиться, кто в какой палатке будет ночевать?Числа от 4 до 15 расставлены по кругу так, что любые два соседних числа различаются либо на 2, либо на 3. Какие два числа из перечисленных обязательно…стоят рядом?ПредыдущийСледующийВместе мы знаем большеЭтот сайт использует cookies Политика Cookies . 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\u0411) 9x\u00b2-24\u0445+15=0; B) x\u00b2-3x+2=0; \u0413) x\u00b2-7x+12=0 \u0434) \u0445\u00b2 +7\u0445+12=0;e) x\u00b2+6x+10=0; \u0436)\u0445\u00b2+8x+16=0; 3) x\u00b2-10x+25=0; \u0438) x\u2074 - 16x\u00b2=0;\u043a) x\u00b2-20x+64=0.\u200b\u200b"},{"id":49788873,"content":"\u0420\u0435\u0448\u0438\u0442\u0435 \u0443\u0440\u0430\u0432\u043d\u0435\u043d\u0438\u0435: a) 4x\u00b2-12x+5=0; \u0411) 9x\u00b2-24\u0445+15=0; B) x\u00b2-3x+2=0; \u0413) x\u00b2-7x+12=0 \u0434) \u0445\u00b2 +7\u0445+12=0;e) x\u00b2+6x+10=0; \u0436)\u0445\u00b2+8x+16=0; 3) x\u00b2-10x+25=0; \u0438) x\u2074 - 16x\u00b2=0;\u043a) x\u00b2-20x+64=0.\u200b"},{"id":49788854,"content":"\u041d\u0430 \u0441\u043a\u043e\u043b\u044c\u043a\u043e \u043f\u0440\u043e\u0446\u0435\u043d\u0442\u043e\u0432 25 \u0431\u043e\u043b\u044c\u0448\u0435 20"},{"id":49788850,"content":"3. \u041d\u0430 \u0440\u0438\u0441. 2 \u0437\u043e\u0431\u0440\u0430\u0436\u0435\u043d\u043e \u0440\u0456\u0432\u043d\u043e\u0431\u0435\u0434\u0440\u0435\u043d\u0438\u0439 \u0442\u0440\u0438\u043a\u0443\u0442\u043d\u0438\u043a ABC, BM- \u0439\u043e\u0433\u043e \u043c\u0435\u0434\u0456\u0430\u043d\u0430, \u043f\u0440\u043e\u0432\u0435\u0434\u0435\u043d\u0430 \u0434\u043e \u043e\u0441\u043d\u043e\u0432\u0438, \u0442\u043e\u0447\u043a\u0430 D \u043d\u0430\u043b\u0435\u0436\u0438\u0442\u044c \u0432\u0456\u0434\u0440\u0456\u0437\u043a\u0443 BM. \u0417\u043d\u0430\u0439\u0434\u0456\u0442\u044c \u0432\u0456\u0434\u043d\u043e\u0448\u0435\u043d\u043d\u044f \u043f\u043b\u043e\u0449\u0456 \u0442\u0440\u0438\u043a\u0443\u0442\u043d\u0438\u043a\u0430 ADC \u0434\u043e \u043f\u043b\u043e\u0449\u0456 \u0442\u0440\u0438\u043a\u0443\u0442\u043d\u0438\u043a\u0430 \u0410\u0412\u0421, \u044f\u043a\u0449\u043e \u0412\u041c=5 \u0441\u043c, \u0430 BD=4 \u0441\u043c. \u0421\u0420\u041e\u0427\u041d\u041e \u200b\u0414\u0410\u042e 100"},{"id":49788849,"content":"\u041c\u0430\u0433\u0430\u0437\u0438\u043d \u043f\u0435\u0440\u0432\u043e\u043c\u0443 \u043f\u0440\u043e\u0434\u0430\u0432\u0446\u0443 \u043f\u0440\u043e\u0434\u0430\u043b \u043e\u0442 80\u043c \u0442\u043a\u0430\u043d\u0438 25%, \u0430 \u0432\u0442\u043e\u0440\u043e\u043c\u0443 30%. \u0421\u043a\u043e\u043b\u044c\u043a\u043e \u043c\u0435\u0442\u0440\u043e\u0432 \u0442\u043a\u0430\u043d\u0438 \u043a\u0443\u043f\u0438\u043b \u043f\u0435\u0440\u0432\u044b\u0439 \u043f\u043e\u043a\u0443\u043f\u0430\u0442\u0435\u043b\u044c? \u0412\u0442\u043e\u0440\u043e\u0439 \u043f\u043e\u043a\u0443\u043f\u0430\u0442\u0435\u043b\u044c \u043d\u0430 \u0441\u043a\u043e\u043b\u044c\u043a\u043e \u043c\u0435\u0442\u0440\u043e\u0432 \u043c\u0435\u043d\u044c\u0448\u0435 \u043a\u0443\u043f\u0438\u043b \u0447\u0435\u043c \u043f\u0435\u0440\u0432\u044b\u0439? \u041f\u043e\u043c\u043e\u0433\u0438\u0442\u0435 \u043f\u043e\u0436\u0430\u043b\u0443\u0439\u0441\u0442\u0430"},{"id":49788848,"content":"\u0423\u043a\u0430\u0436\u0456\u0442\u044c \u0433\u0440\u0430\u0444\u0456\u043a, \u044f\u043a\u0438\u0439 \u041c\u041e\u0416\u0415 \u0431\u0443\u0442\u0438 \u0433\u0440\u0430\u0444\u0456\u043a\u043e\u043c \u0437\u0430\u043b\u0435\u0436\u043d\u043e\u0441\u0442\u0456 S=f(P) \u043f\u043b\u043e\u0449\u0456 \u043f\u0440\u0430\u0432\u0438\u043b\u044c\u043d\u043e\u0433\u043e \u0442\u0440\u0438\u043a\u0443\u0442\u043d\u0438\u043a\u0430 \u0432\u0456\u0434 \u0439\u043e\u0433\u043e \u043f\u0435\u0440\u0438\u043c\u0435\u0442\u0440\u0430 \u0420. T \u0414 \u0434\u0430\u044e 50 \u0431\u0430\u043b\u043e\u0432\u200b"},{"id":49788843,"content":"\u041f\u043e\u043c\u043e\u0436\u0456\u0442\u044c 3,5:(\u0445+23)=0,7"},{"id":49788834,"content":"\u0412 \u043a\u0440\u0443\u0436\u043e\u043a \u043f\u043e \u043c\u0430\u0442\u0435\u043c\u0430\u0442\u0438\u043a\u0435 \u0445\u043e\u0434\u044f\u0442 8 \u0440\u0435\u0431\u044f\u0442: 4 \u043c\u0430\u043b\u044c\u0447\u0438\u043a\u0430 \u0438 4 \u0434\u0435\u0432\u043e\u0447\u043a\u0438. \u0414\u0435\u0442\u0438 \u0441\u0438\u0434\u044f\u0442 \u0437\u0430 \u043f\u0430\u0440\u0442\u0430\u043c\u0438 \u043f\u043e \u0434\u0432\u043e\u0435, \u043f\u0440\u0438\u0447\u0451\u043c \u043a\u0430\u0436\u0434\u044b\u0439 \u043c\u0430\u043b\u044c\u0447\u0438\u043a \u0441\u0438\u0434\u0438\u0442 \u0441 \u0434\u0435\u0432\u043e\u0447\u043a\u043e\u0439. \u0414\u043b\u044f \u043e\u0431\u0441\u0443\u0436\u0434\u0435\u043d\u0438\u044f \u043e\u0434\u043d\u043e\u0439 \u0437\u0430\u0434\u0430\u0447\u0438 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\u043a\u0430\u043a\u043e\u0439 \u043f\u0430\u043b\u0430\u0442\u043a\u0435 \u0431\u0443\u0434\u0435\u0442 \u043d\u043e\u0447\u0435\u0432\u0430\u0442\u044c?"},{"id":49788831,"content":"\u0427\u0438\u0441\u043b\u0430 \u043e\u0442 4 \u0434\u043e 15 \u0440\u0430\u0441\u0441\u0442\u0430\u0432\u043b\u0435\u043d\u044b \u043f\u043e \u043a\u0440\u0443\u0433\u0443 \u0442\u0430\u043a, \u0447\u0442\u043e \u043b\u044e\u0431\u044b\u0435 \u0434\u0432\u0430 \u0441\u043e\u0441\u0435\u0434\u043d\u0438\u0445 \u0447\u0438\u0441\u043b\u0430 \u0440\u0430\u0437\u043b\u0438\u0447\u0430\u044e\u0442\u0441\u044f \u043b\u0438\u0431\u043e \u043d\u0430 2, \u043b\u0438\u0431\u043e \u043d\u0430 3. \u041a\u0430\u043a\u0438\u0435 \u0434\u0432\u0430 \u0447\u0438\u0441\u043b\u0430 \u0438\u0437 \u043f\u0435\u0440\u0435\u0447\u0438\u0441\u043b\u0435\u043d\u043d\u044b\u0445 \u043e\u0431\u044f\u0437\u0430\u0442\u0435\u043b\u044c\u043d\u043e \u0441\u0442\u043e\u044f\u0442 \u0440\u044f\u0434\u043e\u043c?"}] 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Какие из чисел 1,4,5 являются корнями уравнения 6икс равно икс в квадрате +5...

SmuR1 @SmuR1

August 2022 1 11 Report

Какие из чисел 1,4,5 являются корнями уравнения 6икс равно икс в квадрате +5

Answers & Comments

Ви2003ка По т. Виета: x²+kx+q
k=-6
q=5
x²-6x+5=0
При коэффициенте при х₂, равном 0, х₁=1
{x₁+x₂=6 => 1+x₂=6 =>x₂=6-1=5
{x₁*x₂=5 => 1*x₂=5 => x₂=5
Ответ: x₁=1
x₂=5

Ви2003каВи2003ка

1 и 5
6x=x²+5
6x-x²=5
x•(6-x)=5
1)x=5
2)6-x=5
-x=-6+5
-x=-1
x=-1:(-1)
x=1
Ответ:5,1

Answers & Comments

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