Помогите, нужно решить способом вычитания и способом подстановки. Created by juliamedvedeva234. algebra-ru

Ответ: (2, -1)Объяснение: {y= -5+2x{3x+4y=23x+4(-5+2x)=2x=2y= -5+2*2y= -1(2, -1)метод подстановки Реклама Реклама Новые вопросы в Алгебра Вычисли значение дроби a⋅b/c−d, если a=1/12; b=24; c=0,4; d=2,26 помогите решить срочно 429 КР з теми «Многочленн». 7 клас. Варiант 1 Початковий та середній рiвнi( 6 балів) У завданнях 1-6 оберiть правильну на вашу думку відповідь 1. Запишіть … у стандартному вигляді многочлен x²-x+5x+3x-1. A 4x+4 5 4x²+2x 2. Спростіть вираз 2(x-1)-5x(3x-1). B-1+2x+6x² I 6x²-2x-1 A-15x²-7x-2 Б -15x2+7x-2 B 15x²-7x+2 I 3x² +7x-1 3. Знайдіть значення многочлена x3-7x+10 при х=-2 B-12 4. Знайдіть добуток одночлена 3х" і лвочлена (2x³-5). A 4 Б 32 Г 16 A 6x-15x² 5 6x-15x² B 6x³ -5 T 2x¹-15x² 5. Виконайте множення многочлена на многочлен: (x-1)(x+2). A x²-3x-2 5 x²+x+2 Br²+x-2 Ix²-x+2 6. Розв'яжіть рiвняння х(2-x) + x2 = 4. A 4 Б 0,5 B-2 г 2 Достатній рівень (3 бали) Розв'яжіть рiвняння -(x-4)(х+3)+x(x+3)=3x-7. Спростіть вираз (x+3)(3-x)-x(2+x)+2х² i знайдіть його ення при x=-10 Високий рівень (3 бали) оведіть, що для будь-якого натурального числа п значення азу -(n-10)(n-1)+(n+2)(n+5) кратне 9. КР з теми «Многочленн». 7 клас. Варiант 2 Початковий та середній рiвнi( 6 балів) У завданнях 1-6 оберіть правильну на вашу думку відповіль стандартному вигляді 1. Подайте B -x² +5x-10x³-8x+2. многочлен A 11x +3x+2 5-11x -3x+2 B-11-3x T 13x²-3x+2 2. Спростiть вираз -4x(3-2x)+7(x-1). A 8x²-19x-7 5-8x²-5x+7 I 5x+8x²³ -7 B-5x+8x²-7 3. Знайдіть значення многочлена х3 +7х-10 при х=-3. A 58 Б 38 B-58 T-26 4. Знайдіть добуток одночлена -5х" і двочлена (3-2х2). A 15x³-10x 5 15x+10x B 15x²-10x F-15x³ +10x5 5. Виконайте множення многочлена на многочлен: (2-x)(x+1). A-x²+x+2 B x²-x+2 B x² +x-2 T=x²+x+3 6. Розв'яжіть рiвняння (х-5)x-x² = 10. A 2 Б-2 B5 Достатній рівень (3 бали) 7. Розв'яжіть рiвняння -(х-2)(2-x)=(x+4)(x-1)-x. 8. Спростіть вираз x(2-x)+(x-2)(x+2)-5x i знайдіть його значення при х=-6. Високий рівень (3 бали) 9. Доведіть, що для будь-якого натурального числа и значення виразу -(n-2)(n-6)+(n+4)(n+3) кратне 3. 2021/11/18 10:35 Решите пж номер 2. Очень надо плз) Помогите пожалуйста мне даю все балы a-a/6a* 3a2/a2-4 якщо а= -1/2 пс( /-дріб, 2- в квадраті) -4/1×(-3/4)2-(-1/3)2 Докажите тождество1) (a²— b² + с²) – (a² + c² - b²)-(b² c²) =c² - b² пж ПАМАГИТЕ срочно!!!!!! Преобразуйте в многочлен стандартного вида 3(х-4)2-3х2 Предыдущий Следующий Вместе мы знаем больше Этот сайт использует cookies Политика Cookies . Вы можете указать условия хранения и доступ к cookies в своем браузере. 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Помогите, нужно решить способом вычитания и способом подстановки...

Вычисли значение дроби a⋅b/c−d, если a=1/12; b=24; c=0,4; d=2,26

помогите решить срочно 429

КР з теми «Многочленн». 7 клас. Варiант 1 Початковий та середній рiвнi( 6 балів) У завданнях 1-6 оберiть правильну на вашу думку відповідь 1. Запишіть … у стандартному вигляді многочлен x²-x+5x+3x-1. A 4x+4 5 4x²+2x 2. Спростіть вираз 2(x-1)-5x(3x-1). B-1+2x+6x² I 6x²-2x-1 A-15x²-7x-2 Б -15x2+7x-2 B 15x²-7x+2 I 3x² +7x-1 3. Знайдіть значення многочлена x3-7x+10 при х=-2 B-12 4. Знайдіть добуток одночлена 3х" і лвочлена (2x³-5). A 4 Б 32 Г 16 A 6x-15x² 5 6x-15x² B 6x³ -5 T 2x¹-15x² 5. Виконайте множення многочлена на многочлен: (x-1)(x+2). A x²-3x-2 5 x²+x+2 Br²+x-2 Ix²-x+2 6. Розв'яжіть рiвняння х(2-x) + x2 = 4. A 4 Б 0,5 B-2 г 2 Достатній рівень (3 бали) Розв'яжіть рiвняння -(x-4)(х+3)+x(x+3)=3x-7. Спростіть вираз (x+3)(3-x)-x(2+x)+2х² i знайдіть його ення при x=-10 Високий рівень (3 бали) оведіть, що для будь-якого натурального числа п значення азу -(n-10)(n-1)+(n+2)(n+5) кратне 9. КР з теми «Многочленн». 7 клас. Варiант 2 Початковий та середній рiвнi( 6 балів) У завданнях 1-6 оберіть правильну на вашу думку відповіль стандартному вигляді 1. Подайте B -x² +5x-10x³-8x+2. многочлен A 11x +3x+2 5-11x -3x+2 B-11-3x T 13x²-3x+2 2. Спростiть вираз -4x(3-2x)+7(x-1). A 8x²-19x-7 5-8x²-5x+7 I 5x+8x²³ -7 B-5x+8x²-7 3. Знайдіть значення многочлена х3 +7х-10 при х=-3. A 58 Б 38 B-58 T-26 4. Знайдіть добуток одночлена -5х" і двочлена (3-2х2). A 15x³-10x 5 15x+10x B 15x²-10x F-15x³ +10x5 5. Виконайте множення многочлена на многочлен: (2-x)(x+1). A-x²+x+2 B x²-x+2 B x² +x-2 T=x²+x+3 6. Розв'яжіть рiвняння (х-5)x-x² = 10. A 2 Б-2 B5 Достатній рівень (3 бали) 7. Розв'яжіть рiвняння -(х-2)(2-x)=(x+4)(x-1)-x. 8. Спростіть вираз x(2-x)+(x-2)(x+2)-5x i знайдіть його значення при х=-6. Високий рівень (3 бали) 9. Доведіть, що для будь-якого натурального числа и значення виразу -(n-2)(n-6)+(n+4)(n+3) кратне 3. 2021/11/18 10:35

Решите пж номер 2. Очень надо плз)

Помогите пожалуйста мне даю все балы

a-a/6a* 3a2/a2-4 якщо а= -1/2 пс( /-дріб, 2- в квадраті)

-4/1×(-3/4)2-(-1/3)2

Докажите тождество1) (a²— b² + с²) – (a² + c² - b²)-(b² c²) =c² - b²

пж ПАМАГИТЕ срочно!!!!!!

Преобразуйте в многочлен стандартного вида 3(х-4)2-3х2

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