Объяснение:

2.

1)x³+27y³=x³+3³y³=(x+3y)(x²-3xy+9y²)

2)x³-64xy²=x(x²-64y²)=x(x-8y)(x+8y)

3)-3a²+18a-27=-3(a²-6a+9)=-3(a-3)²

4)a⁴-16=(a²-4)(a²+4)

3.

1)6x³-24x=0

6x(x²-4)=0

x(x²-4)=0

x=0

x²-4=0

x=-2

x=2

2)25x³-10x²+x=0

x(25x²-10x+1)=0

x=0

(5x-1)²=0

x=1/5

3)x³-4x²-9x+36=0

x²(x-4)-9(x-4)=0

(x-4)(x²-9)=0

x-4=0

x²-9=0

x=4

x=-3

x=3

3.(6x-7)²-(4x-3)²

(6x-7-4x+3)(6x-7+4x-3)

(2x-4)(10x-10)

2(x-2)10(x-1)

2•10(x-2)(x-1)

20(x-2)(x-1)