Решите первые уравнения.пожалуйста(задания на фото). Created by BABYSTORM. algebra-ru

1a)4x²-12x+9-8x-4x²-11=020x=-2x=-2:20x=-0,1b)x+25x²+20x+4-25-25x²=021x=21x=12{9x+8y=21{6x+4y=13/*(-2)⇒-12x-8y=-26прибавим -3x=-5x=5/36*5/3+4y=134y=13-104y=3y=3/4Ответ (5/3;3/4)Новые вопросы в АлгебраСколькими способами можно рассадить 5 мальчиков и 3 девочки на 8 стульях, стоящих в один ряд, чтобы все девочки не сидели рядом. Пожалуйста, помогите…решить.Реши:t(x)=x+2x²+x-20 при х²+х-20≠03×(a-b-c)+5×(a-b)+3c=8×(a-b)Допоможіть будь ласка!Якщо можна з поступовим поясненнямДякую!m+3 n+3 якщо m>n порівняйте числазависимость y от х задана таблицей. Найдите ее область определения и область значения. Определите, является ли эта зависимость функцией. Постройте гра…фик этой зависимостих -4 -1 3 4 -4у -3 -2 1 -2 3найти производную соs²xНадо решить системы уравнений ( не графичным способом)125a⁸b⁴-20a⁶b⁵______________15a⁵b⁴Упростите помогите пжпжпжпжрж((7^2005)+(7^2004)+8)/((7^2004)+1)ПредыдущийСледующийВместе мы знаем большеЭтот сайт использует cookies Политика Cookies . 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Решите первые уравнения.пожалуйста(задания на фото)...

BABYSTORM @BABYSTORM

August 2022 1 5 Report

Решите первые уравнения.пожалуйста(задания на фото)

Answers & Comments

sedinalana 1
a)4x²-12x+9-8x-4x²-11=0
20x=-2
x=-2:20
x=-0,1
b)x+25x²+20x+4-25-25x²=0
21x=21
x=1
2
{9x+8y=21
{6x+4y=13/*(-2)⇒-12x-8y=-26
прибавим
-3x=-5
x=5/3
6*5/3+4y=13
4y=13-10
4y=3
y=3/4
Ответ (5/3;3/4)