Question

Expand using identity (2a+3) square
We have to expand with identity.

Answer 1

Answer:

4a^2 + 12a + 9

explanation:

identity states that (a + b)^2 = a^2 + b^2 + 2ab

Answer 2

Answer:

4asq+9+12a

Step-by-step explanation:

by using [a+b]sq = asq+bsq+2ab

so 2a the whole sq +3 the whole square +2(2a)(3)

4asq+9+12a

thus this is the answer