Question

Find the product using identities:
i) (2 a2 -3 b2)( 2a 2 - 3b2)

Answer 1

Answer:

this can be solved by using (a^2-b^2)^2 identity

=a^4-2a^2b^2+b^4

Step-by-step explanation:

1. (2a^2-3b^2)^2
2. =(2a^2)^4-2 (2a^2)^2 (3b^2)^2+(3b^2)^4
3. =16a^6-72a^4b^4+81b^6