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You can put this solution on YOUR website!
Every quadratic equation has two solutions; every quadratic expression can be factored. But nearly always when we are asked to factor a quadratic, we want to factor it \"over the integers\". And while every quadratic expression can be factored, very few can be factored over the integers.
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document.write( "So I think the answer to your question is that your quadratic expression can't be factored.
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document.write( "I assume you are familiar with the quadratic formula, and with the discriminant, b^2-4ac. A quadratic expression can be factored over the integers if and only if the discriminant is a perfect square (so that the square root of the discriminant is an integer).
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document.write( "In your quadratic, b^2-4ac is -15. So not only can the expression not be factored over the integers; but also the negative value of the discriminant means the zeros of the expression (the roots of the equation) are complex.
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document.write( "The quadratic formula gives the two roots of your example as
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document.write( "or
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document.write( "Then, if you wanted a factored form of your quadratic equation, even though the roots are complex, it would be
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