Question

the expansion from of (2x+1)power of 2 is​

Answer 1

Step-by-step explanation:

$\bold{question : } \bold \color{red}{(2x + 1 {)}^{2} }$

$\bold{solution : }$

$= \: \: (2x + 1 {)}^{2}$

$= \: \: \: (2x + 1)(2x + 1)$

$= \: \: \: 2x(2x + 1) + 1(2x + 1)$

$= \: \: \: 4 {x}^{2} + 2x + 2x + {1}^{2}$

$= \: \: \: 4 {x}^{2} + 4 x+ 1$

$\bold{formulae \: used : }$

$\boxed{ \bold \color{lime}{(a + b {)}^{2} = {a}^{2} + 2ab + {b}^{2} }}$