Question

Evulate each of the following : (a²-5b²)²​

Answer 1

Step-by-step explanation:

check the answer if it is correct

Answer 2

AnsweR :

$\sf \bold{ {a}^{4} + {25b}^{2} - 2 {a}^{2} b}$

ExplanatioN :

$\sf \: Evaluate : {( {a}^{2} - 5b) }^{2}$

$\pink{ \boxed{\sf \purple{ [Using \: Identity] : {(a)}^{2} + {(b)}^{2} - 2ab }}}$

$\sf{( {a}^{2} - 5b) }^{2} \\ \\ \sf = {( {a}^{2} )}^{2} + ( {5b)}^{2} - 2( {a}^{2} )(5b) \\ \\ \sf = {a}^{4} + {25b}^{2} - 10 {a}^{2} b$