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Elina [12.6K]
4 years ago
6

Please can someone answer this.

Mathematics
1 answer:
ivanzaharov [21]4 years ago
7 0

Answer:

  •  x = -4, x = 0, x = 1

Step-by-step explanation:

x is a factor of all terms, so x=0 is a zero. (Eliminates choices 1 and 5.)

The sum of coefficients is 0, so x=1 is a zero. (Eliminates choices 3 and 4.)

Reversing the sign of the odd-degree terms gives signs of -++, so there is one sign change, hence one negative real root (by Descartes' rule of signs). This confirms choice 2 as the answer.

___

Of course, your graphing calculator can answer this almost as quickly.

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If n + 7 = 10, evaluate 2n - 2<br> O 3<br> 0 17<br> 4<br> 6
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6,384 meters in millimeters
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