Thread: solutions to differential equations

Which of the following functions are solutions of the differential equation y''+10y'+25y=0?

A. y(x)=x^2e^-5x
B. y(x)=-5x
C. y(x)=0
D. y(x)=e^+5x
E. y(x)=xe^-5x
F. y(x)=e^-5x

Differentiate them and stick them in. Those that work, are solutions.