How do you simplify sqrt7-6sqrt7?

2 Answers
May 19, 2017

-5sqrt7

Explanation:

Let x=sqrt7

x-6x=-5x

Substituting sqrt7 will give us -5sqrt7

May 19, 2017

-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