Solutions of Polynomial Functions

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

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

Find all roots/zeros/x-intercepts/solutions.

• $x=0,-4,5$

• $x=0,2,\frac{5}{3}$

• $x=0,2,5$

• $x=0,2,-5$

• 2

• 1

• 4

• None

What are the zeros of the function? (It is ok to approximate)

• 4,1

• 3,1,-2,-5

• -3, -1, 2, 5

• -2,4

Factor Completely: x² – 17x + 72

• (x – 9)(x + 8)

• (x – 9)(x – 8)

• x(x – 3)

• (x + 9)(x + 8)

Find the root(s) of the function.

• x = 3

• x = {–3, –1, 2}

• x = {–3, 2}

• x = –1

What are the zeros of the polynomial function?

y = x(x – 6)(x + 5)

• 0, 6, –5

• 6, –5

• 0, –6, 5

• 1, –6, 5

Factor and solve:

0 = x³ + 11x² + 24x

• x = 8, 3

• x = –8, –3

• x = –8, –3, 0

• x = 0, 8, –3

Solve by factoring: x² – 9x + 20 = 0

• x = –4 and x = –5

• x = 20 and x = –9

• x = 4 and x = 5

• x = –4 and x = 5