Answer
x=9 or -$\frac{4}{5}$
Work Step by Step
Set each variable factor as equal to zero and then isolate the variable to find the solutions.
(x-9)(5x+4)=0
x-9=0 or 5x+4=0
x=9 or 5x=-4
x=9 or x=-$\frac{4}{5}$
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