Section 6.6 Solving Polynomial Equations

Solve the following equation:
x⁴ - 6x² + 8 = 0

• 2, -2
• 2, -2, √2, 2i
• √2, -√2
• 2, -2, √2, -√2

Tags

CCSS.HSA-REI.B.4B

Solve the following equation:
x⁴ + x² - 90 = 0

• 3, -3, ±√10
• 3, -3
• ±√10
• 3

Tags

CCSS.HSA-REI.B.4B

f(x)=(x+4)(x-3)(x-2)
List the zeros for this function.

• x=-4, x=3, x=-2
• x=-4, x=3, x=2
• x=-4, x=3, x=2
• x=4, x=3, x=2

Tags

CCSS.HSF-IF.C.7C

What are the x-intercepts of the polynomial
y = 3 (x + 4) (x + 1) (x - 3)?

• -4, -1, 3
• 3, -3, 4, 1
• 4, 1, -3
• 3, -4, -1, 3

Tags

CCSS.HSF-IF.C.7C

What is another way to say "where a function crosses the x-axis"?

• x-intercept
• zero
• root
• all of these.

Tags

CCSS.HSF-IF.C.7C

How many zeros does the polynomial function
 P(x) = 3x⁴+4x-8 have?

• 1
• 2
• 3
• 4

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Tags

CCSS.HSA-REI.B.4B

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Tags

CCSS.HSN.CN.C.9

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Tags

CCSS.HSF-IF.C.7C

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