Find Zeros

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

• 3, √5 

• 3, √5, -√5

• -3, √5, -√5

• -3, 5i, -5i

Find all zeros for the polynomial function P(x)= x³-3x²+12x-10

• 1, 1-3i, 1+3i

• 1, 1+3i, -1-3i

• -1, -1+3i, -1-3i

• -1, -5, 2

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

• 6, 3, -3

• -6, 3, -3

• -6, 3i, -3i

• 6, 3i, -3i

The degree of the polynomial determines the max number of roots.

• True

• False

One zero of 2x³-13x²+36 is 2.
What is another zero?

• 3/2

• 6

• 2

• -6

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