Question 940840: My son is trying to solve 9x2+7x-56 he believes it cannit be factored. Found 2 solutions by Alan3354, richard1234:Answer by Alan3354(69443) (Show Source):
You can put this solution on YOUR website! My son is trying to solve 9x2+7x-56 he believes it cannit be factored.
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It's not an equation, so there's nothing to solve.
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It cannot be factored with integers. That's the definition of prime.
Any 2nd order polynomial can be factored with its roots, but that would mean there are no prime polynomials --> no prime numbers.
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In short, your son is correct, it cannot be factored.
