SOLUTION: For what values of K does the equation have equal solutions? 2x^2-Kx+8=0

SOLUTION: For what values of K does the equation have equal solutions? 2x^2-Kx+8=0

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Question 570721: For what values of K does the equation have equal solutions? 2x^2-Kx+8=0
Answer by josmiceli(19441) (Show Source): You can put this solution on YOUR website!
When the equation has the form ,
The quadratic formula to find the roots is

For real solutions, must be or positive
given:

To be positive or zero,

and, also, using (-) root

so,

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