Question

(2a+2b)2
$(2a + 2b) {?}^{2}$

Answer 1

$= {(2a)}^{2} + {(2b)}^{2} + 2(2a)(2b)$
${4a}^{2} + {4b}^{2} + 8ab$

Answer 2

Hi Friend ✋✋✋


( 2a + 2b ) ²

We can do it by using Identity I

( a + b )² = a² + b² + 2ab

So,

( 2a + 2b ) ² = ( 2a )² + ( 2b )² + 2 ( 2a ) ( 2b )

( 2a + 2b ) ² = 4a² + 4b² + 8ab = 4 ( a² + b² + 2ab ) = 4 × ( a + b ) ²


Hope it helps