Question

This is my last problem and i need help on it...Simplify this problem

Answer 1

still here!

Answer 2

satellite73 you're a hero

Answer 3

lol

Answer 4

\[\frac{3\sqrt{7}}{-1-\sqrt{27}}\] like that?

Answer 5

yes

Answer 6

ok we multiply by
\[\frac{-1+\sqrt{27}}{-1+\sqrt{27}}\]

Answer 7

\[\frac{3\sqrt{7}}{-1-\sqrt{27}}\times \frac{-1+\sqrt{27}}{-1+\sqrt{27}}\]
\[=\frac{3\sqrt{7}(-1+\sqrt{27})}{1-27}\]

Answer 8

now we can clean this up a little and get
\[\frac{3\sqrt{7}(-1+3\sqrt{3})}{-26}\]
\[\frac{-3\sqrt{7}+9\sqrt{21}}{-26}\]
\[\frac{3\sqrt{7}-9\sqrt{21}}{26}\]

Answer 9

Thank you

Answer 10

yw