Answer:
i think its 2x
Explanation:
Factor is another name for a multiplier.
2x2 = 2 · x · x
-10x = -1 · 2 · 5 · x
Common factors are multipliers that are in both expression.
What factors (multipliers) are in both of the equations?
2 and x, these are the common factors.
2x is the greatest (largest/most) common factor.