Предмет: Алгебра, автор: KISAAA20

Решите уравнение пожалуйста) (x+4)во второй степени-(x+1)(x-2)=2x-3

Ответы

Автор ответа: almazka1
0

(x+4)^2-(x+1)(x-2)=2x-3

x^2+16+8x-(x^2-2x+x-2)-2x+3=0

x^2+19+6x-x^2+x+2=0

21+7x=0

7x=-21

x=-3

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