Chapter 4 Part 1 Unit TEST: Polynomial Functions Answers
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21
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A student factors 10x2 + 3x – 27 to the following. (2x – 3)(5x + 9) Which statement about (2x – 3)(5x + 9) is true?
A
The expression is equivalent, and it is completely factored.B
The expression is equivalent, but it is not completely factored.C
The expression is not equivalent, but it is completely factored.D
The expression is not equivalent, and it is not completely factored.22
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Vanessa uses the expressions (3x2 + 5x + 10) and (x2 – 3x – 1) to represent the length and width of her patio. Which expression represents the area (lw) of Vanessa’s patio?
A
Option
B
Option
C
Option
D
Option
23
What is the missing coefficient? =
A
4B
8C
10D
2224
The volume of a cylinder is given by the formula , where r is the radius of the cylinder and h is the height. Suppose a cylindrical can has radius (x + 8) and height (2x + 3). Which expression represents the volume of the can?
A
Option
B
Option
C
Option
D
Option
25
What is the factored form of 2x3 + 4x2 – x?
A
2 x (x squared + 2 x + 1)
B
x (2 x squared + 4 x + 1)
C
2 x (x squared + 2 x minus 1)
D
x (2 x squared + 4 x minus 1)
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