(x+3)^4+2(x+3)^2-8=0

Question

(x+3)^4+2(x+3)^2-8=0

Answer 1

(x+3)*4+2(x+3)*2-8=0
4x+12+(2x+6)*2-8=0
4x+12+4x+12-8=0
8x+16=0
8x=-16
x=-2
Ответ: -2