Question 948549: Factor the trinomial: 30d2 +7d-15
Answer by stanbon(75887)   (Show Source):
You can put this solution on YOUR website! Factor the trinomial: 30d2 +7d-15
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Find 2 numbers whose product = AC = --450 and whose sum = B = 7
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Ans::25-18
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Rewrite the problem replacing B::
30d^2 + 25d - 18d - 15
Factor::
5d(6d+5) - 3(6d+5)
Factor::
(5d-3)(6d+5) = 0
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Cheers,
Stan H.
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