AnswersMathematics III ASynthetic Division and the Remainder Theorem

Synthetic Division and the Remainder Theorem Answers

10 verified answers1 views
1
Free Preview

One root of is x = 2. What are all the roots of the function? Use the Remainder Theorem.

Question illustration
x
x = 2, x = 3, or x = 4
x
x = –2, x = –3, or x = –4
x
x = 1, x = 2, x = 3, or x = 13
x
x = –1, x = –2, x = –3, or x = –13
3

If –1 is a root of f(x), which of the following must be true?

A
A factor of f(x) is (x – 1).
B
A factor of f(x) is (x + 1).
C
Both (x – 1) and (x + 1) are factors of f(x).
D
Neither (x – 1) nor (x + 1) is a factor of f(x).
4

One factor of is (x + 7). What are all the roots of the function? Use the Remainder Theorem.

Question illustration
x
x = –4, x = –2, or x = 7
x
x = –7, x = 2, or x = 4
x
x = –7, x = 5, or x = 280
x
x = –280, x = –5, or x = 7
5

If f(1) = 0, what are all the roots of the function ? Use the Remainder Theorem.

Question illustration
A
x = –1, x = 1, or x = 3
B
x = –3, x = –1, or x = 1
C
x = –3 or x = 1
D
x = –1 or x = 3
6

The area of a rectangle is with length x + 3. Using synthetic division, what is the width of the rectangle?

Question illustration
A
5 x squared + 4 x minus 6
Option A
B
5 x squared + 34 x + 108 + StartFraction 306 Over x + 3 EndFraction
Option B
C
5 x cubed + 4 x squared minus 6 x
Option C
D
5 x squared + 34 x + 108 + StartFraction 306 Over x minus 3 EndFraction
Option D
7

If (x + 8) is a factor of f(x), which of the following must be true?

A
Both x = –8 and x = 8 are roots of f(x).
B
Neither x = –8 nor x = 8 is a root of f(x).
C
f(–8) = 0
D
f(8) = 0
10

Use synthetic division to solve . What is the quotient?

Question illustration
A
4 x squared minus 27 x + 167 minus StartFraction 996 Over x minus 6 EndFraction
Option A
B
4 x squared + 21 x + 131 + StartFraction 792 Over x + 6 EndFraction
Option B
C
4 x squared + 21 x + 131 + StartFraction 792 Over x minus 6 EndFraction
Option C
D
4 x squared minus 27 x + 167 minus StartFraction 996 Over x + 6 EndFraction
Option D

Did you find these answers helpful?

Synthetic Division and the Remainder Theorem…