Question

(3+x)^2by uising identity (a+b)^2​

Answer 1

Answer:

(A+B) *2 =A*2+B*2+2AB

(3+X)*2 = 3*2 +X*2 +6X

= 9+ X*2 +6X

Answer 2

Answer:

by using identity

(3x+2)^2 (a+b)^2

a^2+ b^2 +2ab

3x^2+2^2+2×3x×2

9x+4+12x