# Thread: Higher order Derivative Ques

1. ## Higher order Derivative Ques

show that the equation $f" (x) + 4 f'(x) + 4 f(x) = 0$ is satisfied if $f(x) = (3x-5)e^-2x$

What is this question asking me to do? I know I will need to find the first and second derivative but where does the + 4 part fit in?

show that the equation $f" (x) + 4 f'(x) + 4 f(x) = 0$ is satisfied if $f(x) = (3x-5)e^-2x$