Question

Решите уравнение 15x^2-(3x+2)(5x-4)= -6

Answer 1

15х²-(3х+2)(5х-4)=-6
15х²-(15х²+10х-12х-8)=-6
15х²-15х²-10х+12х+8=-6
2х=-6-8
2х=-14
х=-7

Answer 2

Спасибо

Answer 3

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Answer 4

$15x^2-(3x+2)(5x-4)= -6 \ 15x^2-(15 x^{2} -12x+10x-8)=-6 \ 15 x^{2} -15 x^{2} +12x-10x+8=-6 \ 2x=-6-8 \ 2x=-14 \x=-14:2 \ x=-7 \ Otvet:x=-7$