Question

(4x²+5y) ² find using identity​

Answer 1

Step-by-step explanation:

4x^2 can be written as 2x

now (2x+5y)^2

By using identity:- (a+b)^2= a^2 + b^2 + 2*a*b

a= 2x

b =5y

2x^2 + 5y^2 + 2*2x*5y

4x^2+25y^2+20xy

So answer is :-

4x^2+25y^2+20xy