Question

Mk cần gấp ạ

Answer 1

\(4x^2-9=\left(2x\right)^2-3^2=\left(2x-3\right)\left(2x+3\right)\)

\(16x^2-8x+1=\left(4x\right)^2-2.4x.1+1=\left(4x-1\right)^2\)

\(x^3-1=\left(x-1\right)\left(x^2+x+1\right)\)

\(xy-xz+y-z=x\left(y-z\right)+\left(y-z\right)=\left(y-z\right)\left(x+1\right)\)