Penyelesaian |x+7|^-3|x+7|-4 = 0
Misalkan p = |x+7|
p^2 – 3p – 4 = 0
(p-4)(p+1)=0
p=4 v p = -1
|x + 7| = 4 |x + 7| = -1 (tidak memenuhi)
(x+7+4)(x+7-4)=0
(x+11)(x+3)=0
x = -11 v x = -3
Penyelesaian |x+7|^-3|x+7|-4 = 0
Misalkan p = |x+7|
p^2 – 3p – 4 = 0
(p-4)(p+1)=0
p=4 v p = -1
|x + 7| = 4 |x + 7| = -1 (tidak memenuhi)
(x+7+4)(x+7-4)=0
(x+11)(x+3)=0
x = -11 v x = -3