Question

what is (a+b)^4..?........​

Answer 1

Answer:

$( {a + b})^{4} = ( {a}^{4} + 4 {a}^{3} b + 4 {a}^{2} {b}^{2} + 4a {b}^{3} + {b}^{4} )$

Answer 2

Answer:

${(a + b)}^{4}$

=

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

=

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

=

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

=

${a}^{4} + {b}^{4} + 4 {a}^{3} b + 6 {a}^{2} {b}^{2} + 4a {b}^{3}$

Hope it helps! ! !