Question

2x + 3 ( -x2 - 1)=- {-3x2 + 2(x - 1 ) -3 (x + 2)}

Answer 1

Respuesta:

2x + 3 ( -x2 - 1)=- {-3x2 + 2(x - 1 ) -3 (x + 2)}

$2x+3\left(-x\cdot \:2-1\right)=-6x+2\left(x-1\right)-3\left(x+2\right)\\-4x-3=-7x-8\\-4x-3+3=-7x-8+3\\-4x=-7x-5\\-4x+7x=-7x-5+7x\\3x=-5\\\frac{3x}{3}=\frac{-5}{3}$

Se simplifica:

$x=-\frac{5}{3}$

Explicación paso a paso:

espero te ayude