SOLUTION: can this be factored using the ac test? 3x^2 + 11 -4

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Question 631056: can this be factored using the ac test?
3x^2 + 11 -4
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
can this be factored using the ac test?
3x^2 + 11x -4
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Think of 2 numbers whose product is ac = 3*-4 = -12
and whose sum is b = 11
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The numbers are +12 and -1
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3x^2 + 12x -x -4
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3x(x+4)-(x+4)
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= (x+4)(3x-1)
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Cheers,
Stan H.
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