Question

Answer 1

Bài 2:

a: \(5x^2-10x=5x\cdot\left(x-2\right)\)

b: \(5x^2-10x+2xy-4y\)

\(=5x\left(x-2\right)+2y\left(x-2\right)\)

\(=\left(x-2\right)\left(5x+2y\right)\)

Answer 2

1.

a) \(=4x^3-8x^2y+12xy^2\)

b) \(=5x^3-10x^2+15x+2x^2-4x+6=5x^3-10x^2+11x+6\)

2.

a) \(=5x\left(x-2\right)\)

b) \(=5x\left(x-2\right)+2y\left(x-2\right)=\left(5x+2y\right)\left(x-2\right)\)