Question

!!!!!!!!Задание на фото СРОЧНО ДАЮ 40 балов!!!!!!!!!!!!

Answer 1

Ответ:

6) 11

8) 2

Объяснение:

6)

ОДЗ:

$\displaystylex+2\neq 0\\\\x\neq -2$

нулі:

$\displaystyle3-\sqrt{x-2}=0\\\\\sqrt{x-2}=3\ \ \ |()^2\\\\x-2=9\\\\x=9+2\\\\x=11\\\\\underline{11}$

8)

ОДЗ:

$\displaystylex-2\ge0\\\\x\ge2$

нулі

$\displaystyle4x-x^3=0\\\\-x(x^2-4)=0\ \ \ |:(-1)\\\\x(x-2)(x+2)=0\\\\x=0\ \ \ \ \ \ \ \ \ x-2=0\ \ \ \ \ \ \ \ x+2=0\\\\.\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ x=2\ \ \ \ \ \ \ \ \ \ \ \ \ x=-2\\\\\underline{2}$