Question

(x+2)²=-2x+10 por favor ajuda aí amigos

Answer 1

(x + 2)² = -2x +10

x² +4x +4 +2x -10 = 0

x² +6x -6 = 0

$\mathsf{\Delta=b^2-4ac}$

36 -4*-6

60 = 2² * 15

$\mathsf{x = \frac{-b \pm \sqrt{\Delta} }{2a}}$

-6 ± 2√15/2

-3 ± √15

$\boxed{{Resposta: -3 +\sqrt{15} ; -3 -\sqrt{15}}}$