How do you simplify: 4 times the square root of 18?

Question

9333 views around the world

You can reuse this answer
Creative Commons License

Answer 1 · 2015-07-26T20:03:32

#4sqrt 18=12sqrt2#

#4sqrt 18#

Factor #18# into its prime factors.y

#4sqrt(2xx3xx3)# =

#4sqrt((3xx3)xx2)#

#4sqrt(3^2xx2)#

Apply the rule #sqrt(a^2)=a#

#4xx3sqrt 2#

#12sqrt 2#