3 years ago

Two solutions of the polynomial equation are given. Use synthetic division to find any remaining solutions.

Mathematics

1 answer:

liubo4ka [24]3 years ago

8 0

Answer:

The remaining solutions are -7 and 3.

Step-by-step explanation:

The synthetic division is shown in the attachment. After dividing the first two found factors from the polynomial, the remaining quadratic is ...

x^2 +4x -21 = 0

Its rational roots will be factors of -21, and the sum of their opposites will be 4. Knowing that 21 = 3·7, we can guess that the remaining roots are -7 and 3. The synthetic division confirms that. (A graph also confirms it.)

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2 years ago

The length of a rectangular box is less than 2 inches more than the width. if the length is 7 inches, what is the area of the bo

kifflom [539]

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you can plug the values given into the formula listed below:

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2 years ago

Read 2 more answers

Which of all the following inequalities is true for all real values of x?

siniylev [52]

Answer:

C. 1/(x^2 +1) > 0

Step-by-step explanation:

The cube of a negative number is negative, eliminating choices B and D for certain negative values of x.

1/x^2 is undefined for x=0, so cannot be compared to zero.

The value 1/(x^2+1) is positive everywhere, so that is the expression you're looking for.

1/(x^2 +1) > 0