second order Differential equation with initial value problem

second order Differential equation with initial value problem
y”-4y’-5y=0 , y(1)= -1, y'(1)= -1 how do you do this or even, better how would I do one similar to this as long as it still uses Euler where y= e^(alpha x)

you solve it finding the general solution and then getting the initial values
second order Differential equation with initial value problem