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stuck on rationalising denominators

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Question H, I went wrong somewhere but I can't figure out where? Thank you in advance
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Original post by jamesgillian123


Check -2sqrt(6)*3sqrt(6) from expanding the numerator
Original post by RDKGames
Check -2sqrt(6)*3sqrt(6) from expanding the numerator


-2 times 3 = -6
root 6 x root 6 is 6
-6 x6 = 36

so the top one is now 2+3root6 - 4root6 - 36
which = 2-root6-36
which is -34-root6 over - 50 do i just flip all the signs to positive then?
Original post by Gent2324
-2 times 3 = -6
root 6 x root 6 is 6
-6 x6 = 36

so the top one is now 2+3root6 - 4root6 - 36
which = 2-root6-36
which is -34-root6 over - 50 do i just flip all the signs to positive then?


If you want.
Hi

2 mistakes

+3root6 - 4root6 is - root 6 not - 7root 6

Also 2 root 6 x 3root 6 is 36

QUOTE=jamesgillian123;76258328]image-10c3a5af-1921-475b-acb7-d374b14c6ac5673020194-compressed.jpg.jpegimage-10b96a5f-8d81-45dc-9ca7-8cd6a735de531324500413-compressed.jpg.jpeg

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