SOLUTION: for the equation 25x^2 - kx = -4, find k so that the equation has exactly one rational root.

SOLUTION: for the equation 25x^2 - kx = -4, find k so that the equation has exactly one rational root.

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Question 384812: for the equation 25x^2 - kx = -4, find k so that the equation has exactly one rational root.
Answer by scott8148(6628) (Show Source): You can put this solution on YOUR website!
25x^2 - kx + 4 = 0

(5x - 2)^2 = 0

use FOIL to find k
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