Posted by **Lucy** on Saturday, August 23, 2008 at 2:33pm.

Find the number of possible negative real zeros for f(x)=6+x^4+2x^2-5x^3-12.

Answer: 0

2) Approximate the real zeros of f(x)=2x^4-3x^2-2 to the nearest tenth.

Answer: no real roots

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