Решите уравнение задание 3. Created by Tanyatakabuko. algebra-ru

A) -2 1+++++++++o---------------------o++++++++++> x∉(-2;1)x²+x-2=4 x²+x-6=0 (x+3)(x-2)=0 x=-3; x=2б) 1-x=625 x=-624

Решите уравнение задание 3...

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Решите уравнение задание 3

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pentV A) $\sqrt{x^2+x-2} =2; x^{2} +x-2 \geq 0; (x+2)(x-1)=0;$

-2 1
+++++++++o---------------------o++++++++++>
x∉(-2;1)

x²+x-2=4
x²+x-6=0
(x+3)(x-2)=0
x=-3; x=2

б) $\sqrt[4]{1-x}=5 ; 1-x \geq 0; x \leq 1;$
1-x=625
x=-624

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