Question

Phân tích thành nhân tử :

5x(x-2) - 3x² (2-x)

Answer 1

https://i.imgur.com/YpXApwH.jpg

Answer 2

=5x(x-2)+3x^2(x-2)

=(5x+3x^2)(x-2)

=x(5+3x)(x-2)

Answer 3

\(5x\left(x-2\right)-3x^2\left(2-x\right)\\ =5x\left(x-2\right)-3x^2\left[-\left(x-2\right)\right]\\ =5x\left(x-2\right)+3x^2\left(x-2\right)\\ =x\left(x-2\right)\left(5+3x\right)\)