Question

 giúp nhanh và chi tiết cho mik ạ

 

Answer 1

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

\(=\left(2x+1\right)^2+2\cdot\left(2x+1\right)\cdot1+1^2\)

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

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

\(2) (3x-2y)^2+4(3x-2y)+4\)

\(=\left(3x-2y\right)^2+2\cdot\left(3x-2y\right)\cdot2+2^2\)

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

#\(Toru\)

Answer 2

`# \text {04th5.}`

`1)`

`(2x + 1)^2 + 2(2x + 1) + 1`

`= 4x^2 + 4x + 1 + 4x + 2 + 1`

`= 4x^2 + 8 + 4`

`2)`

`(3x - 2y)^2 + 4(3x - 2y) + 4`

`= 9x^2 - 12xy + 4y^2 + 12x - 8y + 4`