Question

Найдите корень уравнения
7х^2-1-(2х+1)*(3х-2)=х^2

Answer 1

$7 x^{2} - x^{2} -1-(6 x^{2} -4x+3x-2)=0$
$6 x^{2} -1-6 x^{2} +4x-3x+2=0$
$x+1=0$
$x=-1$