Question

phân tích x^3+5x^2+6x

Answer 1

\(x^3+5x^2+6x=x^2\left(x+2\right)+3x\left(x+2\right)=x\left(x+3\right)\left(x+2\right)\)

Answer 2

x³+5x²+6x= x³+3x²+2x²+6x=x² (x+3)+2x(x+3 )

=(x+3)(x²+2x)

Answer 3

\(x^3+5x^2+6x\)

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

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

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

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