Question

решите уравнение -2x^-2x+5=-x^2-x-(1-x^2)

Answer 1

$-2 x^{2} -2x+5=- x^{2} -x-(1- x^{2})$
$-2 x^{2} -2x+5=- x^{2} -x-1+ x^{2}$
$-2 x^{2} -x+6=0$
$2 x^{2} +x-6=0$
$x_{1}=1, x_{2}=- frac{3}{2}$