Question

check whether (x-1) is the factor of the polinomial X3 -7x+6 or not

Answer 1

hey,,
here is your answer...
x-1=0
x=1
→x³-7x+6 = 0
→(1)³-7×1+6 = 0
→1-7+6 = 0
→7-7 = 0
= 0
hence x-1 is the factor of x³-7x+6.

HOPE THIS WILL HELP YOU DEAR.
:)