Show all steps to factor completely x^4− 5x+ 4

I tried to do this but the gcf was 1 so im confuse??
WILL GIVE BRAINLIESTT TO BEST ANSWER
PLS ANSWER CORRECTLY IN FULL DETAIL :,c

Which graph has a rate of change of zero

Let x = a + bi and y = c + di and z = f + gi. which statements are true?

Given a binomial distribution variable with n=20 and p=0.60 find the following possibilities using the binomial table a) p(x < 13) b) p x > 15) c) p(x = 17) d) p(11 < x < 14) e) p(11 < x < 14)