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Suppose that \(a\) is a nonzero constant for which the equation \(ax^2+20x+7=0\) has only one solution. Find this solution.

 Jul 1, 2021
 #1
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The determinat of the quadratic formula must = 0 for only one solution to the equation

 

  b^2 - 4ac = 0

 

20^2 - 4(a)(7) = 0         solve for 'a' ...........   you can finish, right?

 Jul 1, 2021

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