How do you simplify #sqrt7-6sqrt7#?

2 Answers
May 19, 2017

Answer:

#-5sqrt7#

Explanation:

Let #x=sqrt7#

#x-6x=-5x#

Substituting #sqrt7# will give us #-5sqrt7#

May 19, 2017

Answer:

#-5sqrt7#

Explanation:

Remember it is actually #1sqrt7 -6sqrt7#

There are two terms with a common factor of #sqrt7#

#1sqrt7 -6sqrt7#

#= sqrt7(1-6)#

#=-5sqrt7#

Or just treat it as adding like terms:

#1sqrt7 -6sqrt7 =-5sqrt7#