Solving Factored Quadratics

• -2, 4
• -8
• ±8
• No real solution

• -6, -2
• -2, 6
• 2, 6
• -6, 2

A new high school gym is painting the gym floor to represents the boundaries of a volleyball court. The court is shaped like a rectangle and has an area of 162 meters. The length of the court is 9 meters greater than the width. The situation can be represented by the equation w2 + 9w- 162 = 0. What is the width of the volleyball court in meters?

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Mathematical Equivalence

ON

Tags

A.8A

• A

• B

• C

• D

Solving the equation f(x) = x² - 8x + 15 =0, what are the two factors we can create to solve this equation? ​ (a)   .

• (x - 3) and (x - 5)

• (x + 3) and (x + 5)

• (x - 15)

• -3, 4
• 3, 4
• -4, -3
• -3

Solve: x²-4x-21=0

• {-7, 3}

• {-3, 7}

• {3, 7}

• {-3,-7}

• -4, 2
• -2, 4
• -16
• -4

• -2, 4
• -8
• ±8
• No real solution

How many zeros does this parabola have? 

• 3

• 2

• 0

• 1