Finding a Quadratic

Factor x² + 4x - 21

• (x + 7)(x - 3)

• (x - 7)(x + 3)

Factor x² - 3x - 10

• (x + 2)(x - 5)

• (x - 2)(x + 5)

Factor x² - 2x - 24

• (x + 6)(x - 4)

• (x - 6)(x + 4)

Solve
x² + 7x + 12 = 0

• x = -2, x = -10

• x = -3, x = -4

• x = -4, x = -5

• x = -4, x = -6

Which is a zero of the graph?

• 0

• -1

• 1.5

• -3

Which is an x-intercept of the function?

• undefined

• 1

• 2

• -1

What are the zeros?

• x= 0 and x= -4

• x= 0 and x= 4

• y= 0

• x= 2

How many roots does this parabola have? 

• 3

• 2

• 0

• 1

Find the roots/zeros of x² - 9

• -3, 3

• -4, 4

Find the roots/zeros of x² - 25

• -4, 4

• -5, 5