As you can see the sum of the roots is indeed − b a and the product of the roots is c a . The example below illustrates how this formula applies to the quadratic equation x 2 - 2x - 8. Again, both formulas - for the sum and the product boil
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Steps to Solve Quadratic Equation Using Factorization If we can factorize \ (a {x^2} + bx + c = 0,\,a \ne 0,\) into a product of two linear factors, then the roots of the quadratic