Автор - KeikoKuri

25 {x}^{2}  - (x + 4) ^{2}  = 0

Ответ

Проверено экспертом

Автор - Evgenia4836

(5x)²-(x+4)²=0

(5x-x-4)(5x+x+4)=0

(4x-4)(6x+4)=0

4*(x-1)*2*(3x+2)=0

(x-1)(3x+2)=0

x1=1

x2= -2/3

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