2(aČ - ab) = aČ - ab
Quote:
Originally Posted by Lord Kagan
I dont get 0 from that line though
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You should get 0 from this line.
You stated a = b so if we subsitute we get 2(aČ - aa) = aČ - aa
Apply the basic rule of calculus that brackets, division, multiplication, ddition & subtraction must be done in that order and we get:
2(0) = 0
