y-4y-5y=0 y(1)= -1 y'(1)= -1 how do you do this or evenbetter how would I do on

y-4y-5y=0 y(1)= -1 y'(1)= -1 how do you do this or evenbetter how would I do one similar to this as long as it still usesEuler where y= e^(alpha x)