Algebra and Trigonometry, 8th edition
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88
| PAGE: 305 | SET: Exercises | PROBLEM: 88 |
Please look in your text book for this problem Statement
The polynomial function is 
.
The polynomial has two variations in signs.
The polynomial 
has no variations in sign.
From descartes rule of signs, the polynomial 
has either two positive or no positive real zeros, and has no negative real zeros. 
The polynomial has either two positive or no positive real zeros, and has no negative real zeros.
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