factorize a(a-1)-b(b-1)
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mira1219:
what have u done in last step
since (a - b) is common for both terms i use it to factorize. left from the first term is a + b and from the second term is - 1. that s why a + b - 1.
clear?
ya
thanks
anytime
thks again
^_^
: )
Answered by
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Answer: (a+b)(a-b) -(a-b)
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its not complete
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