Question

Phân tích đa thức thành nhân tử : 2x ( x+1 )²+2(x+1)²

Answer 1

=\(\left(x+1\right)^2\).(2x+2)

Answer 2

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

Answer 3

\(2x\left(x+1\right)^2+2\left(x+1\right)^2\)

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

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

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