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OpenStudy (anonymous):
factor 2t^2 + 5t-3
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OpenStudy (anonymous):
(2t-1)(t+3)
OpenStudy (anonymous):
how do you get that?
OpenStudy (anonymous):
well,
OpenStudy (anonymous):
there's a trick...
OpenStudy (anonymous):
???
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OpenStudy (anonymous):
since the 2t is out front I know it will be one of the square terms in the factor... then I see the middle term is +5 so I need two numbers that will multiply together to make (-3) and add together to make the +5
OpenStudy (anonymous):
knowing that 2*3x = 6 and -1*x = 5x (something like that) you'll get it after a while...
OpenStudy (anonymous):
some are more difficult than others of course.. late
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