Quadratic problem

Question

Suppose ƒ(x)= x^2-5x+4

a) Determine the x-intercepts of the function. (list the value(s) of the x separated by a comma)

b) find the solution(s) for: x^2-5x+4=0 (they want the solutions in a inequality)

Answer 1

x^2 -5x+4

= (x-4)(x-1)

x intercepts are 1 and 4

which are also the solutions to the equation

x^2-5x+4 = 0