SOLUTION: simplify 6 square root 20 + square root 180 - 2 square root 45

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Question 132224: simplify 6 square root 20 + square root 180 - 2 square root 45
Answer by edjones(8007) About Me  (Show Source):
You can put this solution on YOUR website!
6sqrt(20)+sqrt(180)-2sqrt(45)
=6sqrt(4*5)+sqrt(36*5)-2sqrt(9*5)
=12sqrt(5)+6sqrt(5)-6sqrt(5)
=12sqrt(5)
.
Ed