Question

(2a+b)²= (___)²+2(__)b+b²​

Answer 1

Answer:

$4 {a}^{2 } + 4ab + {b}^{2}$

Answer 2

Answer:

Step-by-step explanation:

We know that (x+y) ^2=x^2+2xy+y^2

Here in this question x=2a and y=B

Then by using above formula we get

(2a+b) ^2= 4a^2+2(2ab) +b^2