Теңдеуді шешіңдер: (5х – 3)(2х + 1) – (2х – 3)(5х + 4) = - 3

Question

Теңдеуді шешіңдер: (5х – 3)(2х + 1) – (2х – 3)(5х + 4) = - 3

Answer 1

(5х-3)(2х+1)-(2х-3)(5х+4)=-3
10х²+5х-6х-3-10х²-8х+15х+12=-3
6х+8=-3
6х=-3-9
6х=-12
х=-12:6
х=-2

Answer 2

У меня получилось х=-2;)))))))

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