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Thursday, October 18, 2012

Finding Last Coefficient - Quadratic Equation

Category: Algebra

"Published in Newark, California, USA"

Find the value of k to the given equation



if the product of the roots is -28.

Solution:

Consider the Quadratic Formula



If the roots of the quadratic equation are





Then









Substitute the value of the variables to the above equation





Therefore the answer is k = 28