Question

Помогите решить. . .

Answer 1

(х+у)(х²-ху+3у²)-2ху²=х³+ух²-ух²-ху²+3у²х+3у³-2ху²=х³+3у³

(х-2)(х+3)-х²+4=0
х²-2х+3х-6-х²+4=0
х-2=0
х=2

3z³+3w³=3(z+w)(z²-zw+w²)

(y+2)²-16=0
(y+2-4)(y+2+4)=0
(y-2)(y+6)=0
y₁-2=0
y₁=2
y₂+6=0
y₂=-6