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OpenStudy (anonymous):
Factoring by grouping. How? a(a-b) + 4b(a-b) - a(a-b)
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OpenStudy (asnaseer):
all the terms contain (a-b) so that can be factored out as follows: (a-b)(a + 4b - a)
OpenStudy (asnaseer):
then you can simplify further to get: 4b(a-b)
OpenStudy (anonymous):
(a-b)(a+4b-a) = (a-b)(4b)
OpenStudy (anonymous):
Thankyou!
OpenStudy (asnaseer):
yw
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OpenStudy (anonymous):
nice!
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