Unit Test — Unit test Answers
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Three roots of a fifth degree polynomial function f(x) are –2, 2, and 4 + i. Which statement describes the number and nature of all roots for this function?
A
f(x) has two real roots and one imaginary root.B
f(x) has three real roots.C
f(x) has five real roots.D
f(x) has three real roots and two imaginary roots.22
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What is the product?
A
Option
B
Option
C
Option
D
Option
23
Which of the following describes the roots of the polynomial function ?
A
–2 with multiplicity 2, 4 with multiplicity 1, and –1 with multiplicity 3B
–2 with multiplicity 3, 4 with multiplicity 2, and –1 with multiplicity 4C
2 with multiplicity 2, –4 with multiplicity 1, and 1 with multiplicity 3D
2 with multiplicity 3, –4 with multiplicity 2, and 1 with multiplicity 424
Randy divides (2x4 – 3x3 – 3x2 + 7x – 3) by (x2 – 2x + 1) as shown below. What error does Randy make?
A
He makes a subtraction error.B
He makes an error writing the constant term in the quotient.C
He makes an error choosing the x-term in the quotient.D
He makes an error rewriting the problem in long division.25
Which expression is equivalent to ?
A
Option
B
Option
C
Option
D
Option
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