Question

What is the exact value of the expressions sqrt 180 − sqrt 125 + sqrt 5? Simplify if possible.

A. 2 sqrt 2
B. 12 sqrt 2
C. 2 sqrt 5
D. 12 sqrt 5

Answer 1

sqrt 180 − sqrt 125 + sqrt 5 = (6sqrt5) - (5sqrt5)+(sqrt 5)

Combine like terms 2sqrt5

Answer 2

The answer is C 2 sqrt 5