?

ACT® Math

Free Version

Upgrade subject to access all content

Moderate

Solving Radical Equations 7

ACTMAT-FOVK08

For what real values of $x$ does:

$$ \sqrt { x-2 } -\sqrt { x-1 } =1 $$

A

$ 1 $

B

$ -1 $

C

$ 3 $

D

No solution.

E

All real numbers.