Question

Phân tích đa thức thành nhân tử :

a) (y-z)(12x²-6x) + (y-z)(12x²+6x)

b) (a-b)+(b-a)²

Answer 1

a)\(\left(y-z\right)\left(12x^2-6x\right)+\left(y-z\right)\left(12x^2+6x\right)\)

\(=\left(y-z\right)\left(12x^2-6x+12x^2+6x\right)\)

\(=24x^2\cdot\left(y-z\right)\)

 

Answer 2

\(a,\left(y-z\right)\left(12x^2-6x\right)+\left(y-z\right)\left(12x^2+6x\right)\)
\(=\left(y-z\right)\left(12x^2-6x+12x^2+6x\right)\)
\(=24x^2\left(y-z\right)\)