Question

Find,

a) (4p+5q) ²

b) (4p-2q) ²

Using the identity
(a+b) ² and ( a-b) ²

please answer correctly
answer four of them ​

Answer 1

=> (4p+5q) ²

=>(4p)²+2*4p*5q +(5q)²

=>16p² + 40pq +25q²