How do you simplify #7sqrt(3x)-sqrt(12x)#?

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Answer 1 · 2018-04-13T16:05:45

#5sqrt(3x)#

#7sqrt(3x)-sqrt(12x)#

#=7sqrt(3x)-sqrt(4*3x)#

Take out #sqrt4#
#=7sqrt(3x)-sqrt(3x)*sqrt(4)#

#=7sqrt(3x)-sqrt(3x)*2#

#=7sqrt(3x)-2sqrt(3x)#

Since both expressions have the same radical:
#=5sqrt(3x)#

\0/ here's our answer !