Question

СРОЧНО!!!!!!!!!!!!!!!!!!!!!!! ДАЮ 20 БАЛЛОВ
2.2

Answer 1

Ответ:

Объяснение:

$3-\frac{1-x}{2} \geq \frac{2x-7}{6} +\frac{7x-2}{3}<=>18-3(1-x)\geq 2x-7+2(7x+2)<=>\\<=>15+3x\geq 16x-11<=>-13x\geq -26=>x\leq 2$

$(\frac{a+5b}{a^2-5ab}-\frac{a-5b}{a^2+5ab}  )*\frac{25b^2-a^2}{5b^2} =\frac{20ab}{a(a-5b)(a+5b)} *\frac{-(a-5b)}{5b^2} =-\frac{4}{b}$