Question

Phân tích đa thức thành nhân tử:

7x-6x²-2

 

Answer 1

\(7x-6x^2-2=-\left(6x^2-7x+2\right)\)

\(=-\left(6x^2-3x-4x+2\right)\)

\(=-\left[3x\left(2x-1\right)-2\left(2x-1\right)\right]\)

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

Answer 2

\(7x-6x^2-2\)

\(=-6x^2+7x-2\)

\(=\left(x-\frac{2}{3}\right)\left(x-\frac{1}{2}\right)\)