Помогите 4 срочно!!!!

Question

Помогите 4 срочно!!!!

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Answer 1

1) x(2c+a)+3(2x+a)
2) x^3(x+3)-x-3
3) xy(x-y)-x(y+x)

Comments

а) =(2xc+6x)+(ac+3a)=2x(c+3)+a(c+3)=
=(c+3)(2x+a)

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б) =(x^4+3x^3)-(x+3)=x^3(x+3)-(x+3)=
=(x+3)(x^3 -1)= (x+3)(x-1)(x^2+x+1)

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в) =(x^2 y - xy^2)+(x^2-xy)=xy(x-y)+x(x-y)=(x-y)(xy+x)=
=x(x-y)(y+1)

Answer 2

А) (2х+а)(с+3)
Б) (х^2-9)(х^2-1)
С) (х-1)(y+x)