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Question 1 of 5Find the zeros:
f(x) = x4 + 8x3 + 10x2 - 40x - 75
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Select the Correct Answer Below: Correct! Cool Emoji Not Correct! Cool Emoji
A
$$3, 5, \pm \sqrt{5}$$
B
$$1, 7, \pm \sqrt{3}$$
C
$$-3, -5, \pm \sqrt{5}$$
D
$$-2, 4, 6 \pm \sqrt{2}$$
E
$$-1, -3, -5, 7$$
Question 2 of 5Find the zeros:
f(x) = x5 + 5x4 - 4x3 - 20x2 + 3x + 15
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Select the Correct Answer Below: Correct! Cool Emoji Not Correct! Cool Emoji
A
$$2, -5, 7, 3 \pm \sqrt{7}$$
B
$$\pm 2, -5, \pm \sqrt{3}$$
C
$$\pm 2, -7, \pm \sqrt{11}$$
D
$$\pm 1, -5, \pm \sqrt{3}$$
E
$$-1, -2, 3, 7, 4$$
Question 3 of 5Find the zeros:
f(x) =  x4 - 2x2 + 4x
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Select the Correct Answer Below: Correct! Cool Emoji Not Correct! Cool Emoji
A
$$0, -2, 1 \pm i$$
B
$$0, -2, 3 \pm 2i$$
C
$$0, -5, 3 \pm 7i$$
D
$$-2, 0, 5 \pm 2\sqrt{2}$$
E
$$-1, 0, -7 \pm 2\sqrt{2}$$
Question 4 of 5Find the zeros:
f(x) = x4 + x3 - 27x2 - 89x - 78
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Select the Correct Answer Below: Correct! Cool Emoji Not Correct! Cool Emoji
A
$$-1, -5, 2 \pm \sqrt{17}$$
B
$$-2, -3, 2 \pm \sqrt{17}$$
C
$$-1, -3, 2 \pm \sqrt{17}$$
D
$$-2, -5, 7, 3$$
E
$$\pm \frac{4}{3}, 7, 9$$
Question 5 of 5Find the zeros:
f(x) = x5 - 2x4 - x3 + 4x2 - 2x - 4
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Select the Correct Answer Below: Correct! Cool Emoji Not Correct! Cool Emoji
A
$$3, 1 \hspace{.1em}\text{mult.}\hspace{.1em}2, 4 \pm i$$
B
$$-5, -1, 3, \pm 7i$$
C
$$7, -1, 3, \pm 7i$$
D
$$3, \pm 1, 1 \pm i$$
E
$$2, -1 \hspace{.1em}\text{mult.}\hspace{.1em}2, 1 \pm i$$

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