Question

evaluate (4a+3b)(4a+3b)-(4a-3b)(4a-3b)+48ab

Answer 1

(4a+3b) (4a+3b) - (4a-3b) (4a-3b) +48ab => (4a+3b)^2 - (4a-3b)^2 +48ab => ( 16a^2 + 9b^2 +24ab) - (16a^2 + 9b^2 -24ab) +48ab => 16a^2 + 9b^2 +24ab - 16a^2 - 9b^2 +24ab + 48ab => 24ab +24ab +48 ab => 96ab

Here's The answer