Question

simplest rationalizing factor of
1. √72
2. 2√125
3. 3√135
4. √5-3
​

Answer 1

Step-by-step explanation:

1. √72 = 6√2

2. 2√125 = 2*(5√5) = 10√5

3. 3√135 = 3*3√15 = 9√15

4. √5 - 3 = (5-9)/(√5+3) = -4/(√5+3)