Question

(x - 1)(x + 1) = 3x – x2 + 8​

Answer 1

Respuesta:

$x_{1}$ = $\frac{-3}{2}$  $x_{2} = 3$

Explicación paso a paso:

(x - 1)(x + 1) = – $x^{2}$ + 3X + 8

$x^{2} -1 = -x^{2} +3x +8$

$2x^{2} -3x-9 = 0$

$(2x+3)(x-3)=0$

$x_{1}$ = $\frac{-3}{2}$    $x_{2} = 3$