Question

помогите решить пожалуйста

Answer 1

5x²-45=5(x²-9)=5(x-3)(x+3)

ax²-4a=a(x²-4)=a(x-2)(x+2)

18c-2p²c=2c(9-p²)=2c(3-p)(3+p)

3ky²-3k=3k(y²-1)=3k(y-1)(y+1)

5a²+10ab+5b²=5(a²+2ab+b²)=5(a+b)²

ax²-4ax+4a=a(x²-4a+4)=a(x-2)²

ax²-2axy+ay²=a(x²-2xy+y²)=a(x-y)²

x³+2x²+x=x(x²+2x+1)=x(x+1)²

4xy+12y-4x-12=4x(y-1)+12(y-1)=4(y-1)(x+3)

60+6ab-30b-12a=30(2-b)+6a(b-2)=30(2-b)-6a(2-b)=6(2-b)(5-a)

45b+6a-3ab-90=45(b-2)+3a(2-b)=45(b-2)-3a(b-2)=3(b-2)(15-a)

-5xy-40y-15x-120=-5x(y+3)-40(y+3)=(y+3)(-5x-40)=-5(y+3)(x+8)