Answer:
10 + 3(√6)
Step-by-step explanation:
To simplify this expression, take what is divisible by 2 in the numerator (top) out of the fraction. For the square root number, change it to a mixed radical form (an equivalent number multiplied by a smaller root) by taking out square numbers.
Split the fraction to see what can be divided
20/2 = 10
Simplify the root. 216 = 4*9*6
4 and 9 are square numbers. Take out the square root of those factors.
Took out the √4 first.
Took out √9. (√4)(√9) = 2*3
The mixed radical is 6√6. Divide it by 2.
Answer