SOLUTION: I need help solving this exponential equation 5x2-3x=625

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Question 129921: I need help solving this exponential equation

5x2-3x=625
Answer by checkley71(8403) About Me  (Show Source):
You can put this solution on YOUR website!
5X^2-3X-625=0
USING THE QUADRATIC EQUATION WE GET:
x+=+%28-b+%2B-+sqrt%28+b%5E2-4%2Aa%2Ac+%29%29%2F%282%2Aa%29+
X=(3+-SQRT[-3^3-4*5*-625])/2*5
X=(3+-SQRT[9+12500])/10
X=(3+-SQRT12,509)/10
X=(3+-111.84)/10
X=(3+111.84)/10
X=114.84/10
X=11.484 ANSWER.
X=(3-111.84)/10
X=-108.84/10
X=-10.884 ANSWER.