sabrinaandkay
factor 2t^2 + 5t-3
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101Ryan101
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(2t-1)(t+3)
sabrinaandkay
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how do you get that?
101Ryan101
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well,
101Ryan101
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there's a trick...
sabrinaandkay
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???
101Ryan101
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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
101Ryan101
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knowing that 2*3x = 6 and -1*x = 5x (something like that) you'll get it after a while...
101Ryan101
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some are more difficult than others of course.. late