# Roots

Determine the quadratic equation absolute coefficient q, that the equation has a real double root and the root x calculate:

$5{x}^{2}+9x+q=0$

Correct result:

q =  4.05
x =  -0.9

#### Solution:

$x=\frac{-9}{2\cdot 5}=-0.9$ We would be very happy if you find an error in the example, spelling mistakes, or inaccuracies, and please send it to us. We thank you! Tips to related online calculators

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