Non-linear equations (one variable)

When using the Quadratic Formula method, what are a, b, and c for the equation: 9x²-x= 0?

• a=9, b = -1, c =0

• a=1, b = 0, c =0

• a=9, b = 0, c =0

• a=9, b = 1, c =0

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.

4x² - 2x - 5 = 0

• (+-√21 +1)/4

• √21

• 4

• 3
• 233
• 14

Solve the equation by using the quadratic formula:

x² - 2x - 4 = 0

• x = 1 ± √5

• x = 5 ± √3

• x = -4, x = 6

• x = 1 ± √3

Find the discriminant: -4v² - 4v - 1 = 0

• 0

• 12

• 20

• 32

Decide on the best method:
6x² = 13x - 2

• Square Root Method
• Factor Method
• Complete the Square
• Quadratic Formula

Answer explanation

First set it equal to zero,

then we can try to use tic-tac-toe since a is not 1. It works. If you chose quadratic formula that will work too. See which method is faster for YOU and do that one. Set the time and let's get started.

• A
• B
• C
• D

Solve. x² + 4x - 16 = 0

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