SOLUTION: -2{{{ sqrt( 16y^4) }}}-{{{ sqrt( 27y^8) }}}+{{{ sqrt( 81) }}} *except all of the roots are not squared, they are cubed.* I need to know how to simplify and combine li

SOLUTION: -2{{{ sqrt( 16y^4) }}}-{{{ sqrt( 27y^8) }}}+{{{ sqrt( 81) }}} except all of the roots are not squared, they are cubed. I need to know how to simplify and combine li

Question 440905:
-2-+
*except all of the roots are not squared, they are cubed.*
I need to know how to simplify and combine like radicals.
Thanks,
Katie
Answer by Alan3354(69443) (Show Source): You can put this solution on YOUR website!
-2
*except all of the roots are not squared, they are cubed.*
It's cube root, not cubed root.
---------------
-2
= -2
----------
Nothing can be combined.
It's not clear what the leading -2 applies to.

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