Solving polynomials

List all possible rational zeros
f(x) = 3x³ + 2x² - 6x + 7

• ±1, ±7, ±1/3, ±7/3
• ±1, ±7
• ±1, ±3, ±7, ±7/3
• ±1, ±3, ±7, ±1/3, ±7/3

List all possible rational zeros
f(x) = 3x⁵-5x²+x+6

• 1, 2, 3, 6, -1, -2, -3, -6
• 1/3,2/3,1,2,3,6,-1/3,-2/3,-1,-2,-3,-6
• 1/3,2/3,1,2,3,6
• 1/3,1,2,3,6,12, 18, -1/3,-1,-2,-3,-6, -12, -18

Which of the following is a zero of

f(x) = x³-3x²-6x+8 ?

• 4

• -1

• 2

• -3

Find all zeros for the polynomial function
P(x) = x³ -3x²-5x+15

• 3, √5 
• 3, √5, -√5
• -3, √5, -√5
• -3, 5, -5

• 2
• 1
• 4
• None

Tags

CCSS.HSA.APR.B.2

CCSS.HSA.APR.B.3

Use the possible rational roots to find all of the zeros of x³ - 3x² - 2x + 4 = 0

• x = -1, 1 ± √5

• x = 1, 1 + √5

• x = 2, 1 ± √5

• x = 1, 1 ± √5

• A
• B
• C
• D

Tags

CCSS.HSF-IF.C.7C

• A
• B
• C
• D

x⁴ + 14x² = -45 (Make sure to select all answers)

• x = 3i, -3i, root 5, -root 5

• x = 3, -3, root 5, -root 5

• x = 3i, -3i, i root 5, -i root 5

• x = 9, -9, 5, -5

• No Real Solution

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