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askquestions01
x=1, x=4, x= -7 

^These would be your answers. 
egoodrich1337
In order to find x-intercepts, you need to solve each binomial when it is equal to zero.

(x - 1)(x - 4)(x + 7)

x - 1 = 0
x = 1

x - 4 = 0
x = 4

x + 7 = 0
x = -7