Question

Phân tích đa thức thành nhân tử:

2x²+5x+3

 

 

Answer 1

\(2x^2+5x+3=2x^2+2x+3x+3=2x\left(x+1\right)+3\left(x+1\right)=\left(2x+3\right)\left(x+1\right)\)

Answer 2

\(2x^2+5x+3=2x^2+2x+3x+3=\left(2x^2+2x\right)+\left(3x+3\right)=2x\left(x+1\right)+3\left(x+1\right)=\left(x+1\right)\left(2x+3\right)\)