Simplify: $4\sqrt{3-2x^{2}} - 1$
I get $4\sqrt{3}-9x$. Not sure this is correct, or if it is most simplified in the form above.
There's no explanation of steps in the material I'm reading from.
simplify $4\sqrt{3-2x^2}-1$
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algebra-precalculus
radicals
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0Can you include given answer of the above question in material in your post. – 2017-01-21
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1How did you get your answer? It is certainly incorrect. (Plug in nearly any value for x.) I don't think it can be simplified. – 2017-01-21
1 Answers
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This certainly can't be right, because for $x=0$ the first expression has value $4\sqrt{3}-1$ and the second is $4\sqrt{3}$.
Please show what you have done, and make sure that you have specified the right problem.
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0Even less accurate for x=1. The first becomes 3 and second 4rt (3)-9. – 2017-01-21
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0Even less accurate with $x=2$: one is well-defined and one isn't (in reals). – 2017-01-21