Solving Quadratics

Factor: x² – 5x – 24

• (x - 5)(x + 19)
• (x - 8)(x + 3)
• (x - 3)(x + 8)
• (x - 19)(x + 5)

Tags

CCSS.HSA.APR.B.3

CCSS.HSA.REI.B.4

CCSS.HSA.SSE.A.2

CCSS.HSA.SSE.B.3

Solve by using the quadratic formula
n² + 14n - 49 = 0

• 2.899, -16.899
• 6.296, -14.296
• No solution
• 7

Multiply
(3x + 1)(2x + 5)

• 6x² + 17 + 5
• 6x + 17x + 5
• 6x² + 17x + 5
• 6x² + 17 + 5x

Find the zeros of this quadratic.

• b=4/5, b=3
• b=4, b=-3
• b=1/5, b=3
• b=4/5, b=-3

What is another word for zeros?

• y-intercepts
• roots
• vertex
• axis of symmetry

Tags

CCSS.HSF-IF.C.7C

Use the quadratic formula to find the solutions for

y = -x² - 5x + 12

• -4.9 and -0.1

• -8.54 and 8.54

• -0.45 and 3.55

• -6.77 and 1.77

Tags

CCSS.HSA-REI.B.4B

What is this formula?

• This is the speed of light formula.
• This is the quadratic formula.
• This is the zero product property.
• This is scary.

Factor: 9x²+30x+25

• (3x+5)(3x+5)
• (9x+5)(1x+5)
• (3x-5)(3x-5)
• (9x-5)(1x+5)

Tags

CCSS.HSA.APR.C.4