SOLUTION: Please help me find: the value of a, given that i-7 is a root of the quadratic equation {{{z2+az+50=0}}}

Question 1159157: Please help me find: the value of a, given that i-7 is a root of the quadratic equation
Answer by greenestamps(13203) (Show Source): You can put this solution on YOUR website!

In a quadratic equation , the sum of the roots is -b/a and the product of the roots is c/a.

The product of the two roots is 50, so the other root is

The sum of the two roots is -14; the sum of the roots is also -a. So a = 14.

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