РАЗЛОЖИТЕ ** множители z³-121z 20t³-20t²+5t z⁴-27zy³ t²-y²+2t-2y

Question

РАЗЛОЖИТЕ на множители
z³-121z
20t³-20t²+5t
z⁴-27zy³
t²-y²+2t-2y

Answer 1

1) =z(z²-121)=z(z-11)(z+11)

2) =5t(4t²-4t+1)=5t(2t-1)²

3) =z⁴-27zy³=z(z³-(3y)³)=z(z-3y)(z²+3yz+9y²)

4) =(t-y)(t+y)+2(t-y)=(t-y)(t+y+2)