Question 1066100: Solve the quadratic equation 3x^2+5x+2=0 by factoring
1. (-1, -2/3)
2. (1, -2/3)
3. (2,5)
4. (-2,5)
Answer by Alan3354(69443)   (Show Source):
You can put this solution on YOUR website! Solve the quadratic equation 3x^2+5x+2=0 by factoring
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Similar problem.
7x^2+26x-8 factor the trinomial or state if it's prime. Using the FOIL method
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7x^2+26x-8
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Factoring is to some extent trial and error.
For this one, obviously, it's (x + a)*(7x + b).
The product of a*b = -8, so the signs are different, one + and one minus.
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a & b are:
1 & 8 or 2 & 4.
Find the combination that works.
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You gain nothing by having someone do it for you.
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