Question

Expand:
(2a+3b)square

Answer 1

Answer:

4a^2 + 12ab + 9b^2

Step-by-step explanation:

(2a+3b)^2

Identity:1   (a+b)^2 = a^2+2ab+b^2

= (2a)^2 + 2*2a*3b + (3b)^2

= 4a^2 + 12ab + 9b^2

Answer 2

Answer:

(2a+3b)²

=(2a)²+2.2a.3b+(3b)²

4a²+12ab+9b²