# Exponential Equation

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• Nov 16th 2013, 10:51 AM
Gragadoodle
Exponential Equation
$(25^x)-(6(5^x))+5=0$
• Nov 16th 2013, 11:46 AM
HallsofIvy
Re: Exponential Equation
$25= 5^2$ so $25^x= (5^2)^x= 5^{2x}= (5^x)^2$. Replace $5^x$ by y and solve the quadratic equation for y.