Complete the gap

Question

0

715

1

(a+2b)²-(a-2b)*(a+2b)-(3a-b)²=???

Guest May 6, 2015

+26396

+8

Best Answer

(a+2b)²-(a-2b)*(a+2b)-(3a-b)² = ???

$\small{\text{ $ (a+2b)^2-(a-2b)*(a+2b)-(3a-b)^2 = 7b^2+10ab-9a^2 $}}$

heureka May 7, 2015

heureka · Answer 1 · 2015-05-07T05:02:28

(a+2b)²-(a-2b)*(a+2b)-(3a-b)² = ???

$\small{\text{ $ (a+2b)^2-(a-2b)*(a+2b)-(3a-b)^2 = 7b^2+10ab-9a^2 $}}$