Question

решение x⁴-8-8x+x³=0

Answer 1

x⁴-8-8x+x³=0
(x⁴+x³)-(8+8х)=0
x³(х+1)-8(1+х)=0
(х+1)(x³-8)=0
1) х+1=0
х=-1
2) x³-8=0
x³=8
х=2