Question

[Tiêu chiến]

X³+1-x²-x

(X+y)-x³-y³

X²-3x²+3x-1

X³+6x²+3x-1

X³+6x²+12x+8

Giúp mk với dg cần ngay bây giờ gấp lắm

Answer 1

[๖²⁴ʱƘ-ƔℌŤ༉]

\(x^3+1-x^2-x\)

\(=\left(x+1\right)\left(x^2-x+1\right)-x\left(x+1\right)\)

\(=\left(x+1\right)\left(x^2-2x+1\right)\)

\(=\left(x+1\right)\left(x-1\right)^2\)

Answer 2

[๖²⁴ʱƘ-ƔℌŤ༉]

\(x+y-x^3-y^3\)

\(=\left(x+y\right)-\left(x+y\right)\left(x^2-xy+y^2\right)\)

\(=\left(x+y\right)\left(1-x^2+xy-y^2\right)\)