Question

Determinar as raízes da equação (x+5)²=9

Answer 1

X^2 + 10x + 16 = 0

Delta= 100-64
Delta= 36

X'= -10 + 6/2
X'= -4/2
X'= -2

X"= -10 -6/2
X"= -16/2
X"= -8