Question

Solutia ecuatiei va rog.

Answer 1

${x}^{2} + 6x + 9 = 16$

${x}^{2} + 6x + 9 - 16 = 0$

${x}^{2} + 6x - 7 = 0$

${x}^{2} + 7x - x - 7 = 0$

$x(x + 7) - (x + 7) = 0$

$(x + 7)(x - 1) = 0$

$x + 7 = 0 = > x = - 7$

$x - 1 = 0 = > x = 1$

Answer 2

cred ca e asa...............................