Question

√45
A) 2√3
C) 4√5.
B) 3√5
D) 4

Answer 1

The simplified form of √45 is 3√5.

Step-by-step explanation:

To simplify the square root of 45, we can break it down into the product of its prime factors. The prime factorization of 45 is 3 x 3 x 5. We can then take the square root of each prime factor: √(3 x 3 x 5) = √(3 x 3) x √5 = 3√5. Therefore, the simplified form of √45 is 3√5, which corresponds to option B.

Learn more about simplifying square roots