Question

помогите плз​, срочно надо

Answer 1

1.
1.(10m-n)(100m ² +10mn+n ²)
2.a(9a-b)(9a+b)
3.-8(x+y) ² 
4.5(n+3)(m-2)
5.(16-b)(16+b)
2.y(y ² -25)-(y ³+8)=у ³-25у-у ³-8=-25у-8
3.
1.(a-6b)(a+6b+1)
2.(5x-y-3)(5x-y+3)
3. y ³(a+1)(y-1)(y+1) (y² +1)
4.(2-m+7n)(2+m-7n)
4.
1.2x ²-32x=0
2x(x-16)=0
x(x-16)=0
x=0
x-16=0
x=0
x=16