Question 78551
Determine thed omain of {{{f(x) = (x^2-3) / (the_square_root_of_ 2x^3 + 7x^2 - 6x -21)}}}
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You only need to look at the denominator; Since it is a radical the radicand
must be >=0; but since it is the denominator it cannot be zero.
So it must be 2x^3+7x^2+6x-21>0
Graph to see where it is >0
I get x>1.2083653
That is the domain
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Cheers,
Stan H.