Question

1) Find the products using identities.
(i) (2a² + 3b) (2a^2+ 3b)​

Answer 1

Hii...

Here's your answer...

$(2a^{2} + 3 b)(2 {a}^{2} + 3b) \\ = {(2a^{2} + 3b)}^{2}$

:.

$(a + b)^{2} \: = \: a^{2} \ + b^{2} + 2ab \\ \\ \\ \\so. \: \: \: \: (2a^{2} )^{2} + (3b )^{2} + 2 \times 2a \times 3b \\ \: \: \: \: \: \: \: = 4a^{4} + 9b^{2} + 12ab$

Hope it'll help you....

Thanks...