Answer:
/2
Explanation:
first we take the square root of the top and bottom:
The denominator is 4. The numerator is harder to solve. To solve, we need to look at the factors of 72.
72= 8 * 9. This means that
We know that the square root of 9 is 3, so now we have
We're almost done!
Since 8= 2*4, and the square root of 4 is 2,
last, we simplify and get