Home » What factor is common to all the expressions x2 – x, 2×2 + x -…

What factor is common to all the expressions x2 – x, 2×2 + x -…

What factor is common to all the expressions x² – x, 2x² + x – 1 and x² – 1?

A.
x
B.
x + 1
C.
x – 1
D.
No common factor
E.
(2x – 1)

Correct Answer: Option D

Explanation

x² – x = x(x – 1)
= 2x² + x – 1
= (2x – 1)(x + 10
x² – 1 = (x + 1)(x – 1)
No factor