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A little more help? The answer i keep coming up with is not an option... :(
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\[5\sqrt{11}-12\sqrt{11}-2\sqrt{11}\]
just add the coefficients together. you should get \[-9\sqrt{11}\]
I keep getting \[-19\sqrt{11}\]
Check your arithmetic. 5-12-2=?
That's where i went wrong ;P stupid mistake. Sorry.
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No worries, it happens to the best of us
:D
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