SOLUTION: if the equation x^2-15-k(2x-8)=0has equal roots find the value of k

SOLUTION: if the equation x^2-15-k(2x-8)=0has equal roots find the value of k

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Question 629638: if the equation x^2-15-k(2x-8)=0has equal roots find the value of k
Answer by josmiceli(19441) (Show Source): You can put this solution on YOUR website!
If the roots are equal, the equation looks
like , then there are 2 roots
at , so I can say

Matching up coefficients:

By substitution:

--------
check answers:

so, works

works too
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