Find the Zeros of Polynomial Function

Find the zeros of the polynomial.

• A

• B

• C

• D

Find all rational zeros, one zero has been given.
f(x) = x³-3x²-x+3;   3

• 2,4,3

• -1,1,3

• 3,2,1

• 4,5,6

One zero of 3x³-4x²-28x-16 is 4.
What is another zero?

• 8

• -2

• 6

• 1

Given one complex zero use the conjugate root theorem to find another.  Zero is 7-5i

• -7+5i

• 7-5i

• -7-5i

• 7+5i

Tags

CCSS.HSN.CN.A.3

How many roots or zeros does the equation
f(x) = 5x⁴-8x³+4x²-6x+3 have?

• 3

• 4

• 5

• 0

Find all real solutions of the polynomial equation x³ - x² - 7x + 3 = 0

• x = 3, ± √2

• x = -3, -1 ± √2

• x = -1 ± √2

• x = 3, 1 ± √2

Tags

CCSS.HSA-REI.B.4B

Find all real solutions of the polynomial equation x³ - 3x² - 2x + 4 = 0

• x = -1, 1 ± √5

• x = 1, 1 + √5

• x = 2, 1 ± √5

• x = 1, 1 ± √5

Tags

CCSS.HSA-REI.B.4B

Find all real solutions of the polynomial equation x³ - 3x² - x + 6 = 0

• x = 2, ½ ± √3/2

• x = -2, ½ ± √13/2

• x = 1, ½ ± √13/2

• x = 2 ½ ± √13/2

Find all real solutions of the polynomial equation x³+3x²-8x+4=0

• x = 1, 4, -2

• x=1, -2 - 2√2, -2 + 2√2

• x = -1, 2 ± √2

• x = 4, -1

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