How do you simplify #(12sqrt5-7sqrt7)+(6sqrt5-7sqrt7)#?

1 Answer
Jul 9, 2018

Answer:

#18sqrt5-14sqrt7#

Explanation:

The parenthesis are unnecessary, thus we have

#color(purple)(12sqrt5)color(steelblue)(-7sqrt7)+color(purple)(6sqrt5)color(steelblue)(-7sqrt7)#

Next, we can combine like terms to get

#18sqrt5-14sqrt7#

Since our radicals have no perfect squares in them, we are done!

Hope this helps!