Question 232060: 30x^2-7x-2 BY FACTORING VERY CONFUSING
Answer by stanbon(75887)   (Show Source):
You can put this solution on YOUR website! 30x^2-7x-2 BY FACTORING
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Use the AC Method.
Think of two numbers whose product is AC = -60 and whose sum is B = -7.
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The numbers are -12 and 5
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Replace -7x with 5x-12x to get:
30x^2+5x-12x-2
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Factor the 1st two and the last two terms separately:
5x(6x+1)-2(6x+1)
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Factor again to get the final answer:
(6x+1)(5x-2)
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Cheers,
Stan H.
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