Question

Answer 1

1) \(2ax-6xy\)

\(=2x\left(a-3y\right)\)

2) \(ax+bx+a+b\)

\(=x\left(a+b\right)+\left(a+b\right)\)

\(=\left(a+b\right)\left(x+1\right)\)

3) \(x^3+8\)

\(=x^3+2^3\)

\(=\left(x+2\right)\left(x^2-2x+4\right)\)

4) \(x^2+4x+4-y^2\)

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

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