Question

(x+1) 2 ao quadrado - 9

Answer 1

$(x + 1)2 \sqrt{ - 9}$

$(x + 1)2 \sqrt{ {( - 3)}^{2} }$

$\sqrt{( - 3) {}^{2} } = - 3$

$(x + 1) (- 6)$

$- 6x - 6 = 0$

$- 6x = 6 \: ( - 1)$

$6x = - 6 \\ x = - \frac{6}{6}$

$x = - 1$