Question

quais as raízes da equação x²+12x-12=1

Answer 1

x^2 + 12x - 12 = 1
x^2 + 12x - 12 - 1 = 0
x^2 + 12x - 13 = 0
a = 1
b = 12
C = -13
delta = b^2 - 4 . a . c
delta = 12^2 - 4 . 1 . (-13)
delta = 144 + 52
delta = 196

x1 = (- 12 + 14) ÷ 2
x1 = 1

x2 = (-12 -14)÷2
x2 = -13