SOLUTION: For what value of k are the roots of 2x^2-8x+k=0 equal?

SOLUTION: For what value of k are the roots of 2x^2-8x+k=0 equal?

Algebra.Com

Question 363323: For what value of k are the roots of 2x^2-8x+k=0 equal?
Answer by robertb(5830) (Show Source): You can put this solution on YOUR website!
is the same as after division by 2. The product of the roots is , while the sum of the roots is . Thus , and , and thus .
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