Question

simplify the following (3x+7a)(3x-7a)+(2x+a)(2x+3a)​

Answer 1

Question:

simplify the following (3x+7a)(3x-7a)+(2x+a)(2x+3a)

Answer:

(3x+7a)(3x-7a)+(2x+a)(2x+3a)

=3x²-7a²+4x²+2ax+6ax+3a²

=3x²-4a²+4x²+8ax

=7x²-4a²+8ax

Therefore your answer is 7x²-4a²+8ax

Answer 2

$\mathcal\green{\underline{\underline{Question}}}$

simplify the following (3x+7a)(3x-7a)+(2x+a)(2x+3a)

$\mathcal\red{\underline{\underline{Answer}}}$

(3x+7a)(3x-7a)+(2x+a)(2x+3a)

=3x²-7a²+4x²+2ax+6ax+3a²

=7x²-4x²+8ax