Question

Phân tích đa thức thành nhân tử

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

Answer 1

= 2x^2 - x + 6x - 3

= x(2x - 1) + 3(2x - 1)

= (x + 3)(2x - 1)

Answer 2

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

\(=2x^2+6x-x-3\)

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

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

Answer 3

\(=2x^2+6x-x-3\)

=(x+3)(2x-1)