Finding Zeros

Find all rational zeros
f(x) = x³-3x²-x+3

• 2,4,3
• -1,1,3
• 3,2,1
• 4,5,6

Tags

CCSS.HSF-IF.C.7C

If 2i is a zero, then

• 2i repeats twice
• -2i is a zero too
• 1-2i is a zero too
• 0+2i is a zero too

Tags

CCSS.HSN.CN.C.9

Use the Fundamental Theorem of Algebra to state the number of zeros/solutions/roots of the polynomial. 

• A
• B
• C
• D

Tags

CCSS.HSA.APR.B.3

CCSS.HSN.CN.C.9

What is the degree of the polynomial function
P(x)=3x⁴-7x²-2x⁷-x+4?

• 4
• 7
• 2
• 1

Which of the following is a 5th degree trinomial with a leading coefficient of -2? 

• -2x⁵ + 3x - 1
• 5x^-2 +3x - 1
• -2x⁵ + 3x⁴ + 2x³ + x² - 10
• 2x + 5

Find all the roots of y=x³-2x²+4x-8  (Hint: Factor)

• -2, 2i, -2i
• 2, 2i, -2i
• 2,-2, 2i
• 1, 2i, 4

Tags

CCSS.HSF-IF.C.7C

Find all zeros of the polynomial function P(x) = x³+6x²+9x+54

• 6, 3, -3
• -6, 3, -3
• -6, 3i, -3i
• 6, 3i, -3i

Tags

CCSS.HSA.APR.B.3

CCSS.HSA.APR.B.2

Find a polynomial function of degree 3 with zeros 3i and -2.

• P(x) = x³+2x²+9x+11
• P(x) = x³-2x²+9x+18
• P(x) = x³+2x²+9x+18
• P(x) = x²-3ix+2x-6i

Tags

CCSS.HSA.APR.B.3

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

• 1
• 2
• 3
• 4

Tags

CCSS.HSA.APR.B.3

Find all points of intersection with the x-axis
(x-5)(x²+49)(x+4)

• 5,±7i,-4
• -5,±7,-2
• 5,±7i,4
• -5,±6i,-4

Tags

CCSS.HSF-IF.C.7C