Приставить в виде много члена 1) (4-x)(4+x)(16+x²) 2) (a²-5b)(a²+5b)(5y-x) 3)3x• (12x-4y)-(6x-y)² 4)(2x-5y)²+4x•(5y-x)

1)-12x²-(-3x⁶+8-10x²)=-12x²+3x⁶-8+10x²=-2х²+3x⁶-8

2) 9m³-5m+(m-6m³-2m⁴)= 9m³-5m+m-6m³-2m⁴=3m³-4m-2m⁴

3) 5x(x+4)-x•(6-2x²) =5x²+20x-6x+2x³=5x²+14x+2x³=

4) -y²•(2y-6)+4y•(y²-y) =-2y³+6y²+4y³-4y²=2y³+2y²

1) (4-x)(4+x)(16+x²)=(16-x²) *(16+x²)=256-x⁴

2) (a²-5b)(a²+5b)(5y-x) =(a⁴-25b²)*(5y-x)=5a⁴y+a⁴x-125b²y+25b²x

3)3x• (12x-4y)-(6x-y)² =36x²-12xy-36x²+12xy-y²=-y²

4)(2x-5y)²+4x•(5y-x)=4x²-20xy+25y²+20xy-4x²=25y²