Answer:
(x-1)(x-2)(x+3)
Step-by-step explanation:
x³ - 7x + 6
= (x³ - x) - ( 6x - 6)
= x(x²-1) - 6(x-1)
= x(x+1)(x-1) - 6(x-1)
= (x-1)(x²+x-6)
= (x-1)(x-2)(x+3)