Asked by Anonymous

Simplify by using factoring:(2a+6b)(6b−2a)−(2a+6b)^2
Thanks for helping!
Answered by Damon
(2a+6b) [ 6b -2a -2a - 6b ]
-4a (2a+6b)
Answered by Reiny
Notice that (2a + 6b) is a common factor, so ...

(2a+6b)( (6b-2a) - (2a+6b) )

simplify the inside of my outside brackets and you are done
Answered by Damon
by the way, I only did step one.
Answered by Anonymous
But wouldn't (6b-2a) already be there? how could you group it?
Answered by Anonymous
the square is outside the parentheses
Answered by Damon
6 = 2*3
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