Question

using suitable identities expand the following (2x+ 3y)square​

Answer 1

Answer:

Step-by-step explanation: (a+b)^2=a^2+b^2+ 2*a*b

(2x +3y)^2

(2a)^2 + (3y)^2+2*2a*3y

4a^2+9y^2+12xy

Answer 2

Answer:

(a+b)^2 = a^2 + 2(ab) + b^2 is the suitable identity to be used.

Step-by-step explanation:

(2x+3y)^2 = 2x^2 + 2 x 2x x 3y + 3y^2

                = 4x^2 + 12xy + 9y^2