Question

(2a-3b)²expand using identities

Answer 1

Answer:

Step-by-step explanation:

We know that (a-b)^2=a^2-2ab+b^2

So by using the above identity, we get

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

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