48*(a*b) - (4*a - 3*b)^2 %2B (4*a %2B 3*b)^2

1.	48(ab) - (4a - 3b)^2 %2B (4a %2B 3b)^2
Answer» (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 = 48ab + 48ab = 96ab 96ab is the correct answer of the given question using identities of (a+b)^2 and (a-b)^2 ok and get 24ab+24ab and + with 48ab and 96ab is final ans96ab

48(ab) - (4a - 3b)^2 %2B (4a %2B 3b)^2

Answer»

(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

= 48ab + 48ab

= 96ab

96ab is the correct answer of the given question

using identities of (a+b)^2 and (a-b)^2 ok and get 24ab+24ab and + with 48ab and 96ab is final ans96ab