Question

simplify:
√72 + √800 - √18
​

Answer 1

Answer:

root 72 can be written as root 36*2=6root 2

Root 800 can be written as root 400*2=20 root 2

Root 18 can written as root 9*2=3root 2

6root2+20root2-3root 2

We can taka root 2 as common

Root2(6+20-3)

Root2(23)

23root 2 is the answer