Quadratic equations

What are the values of a, b, and c in the quadratic equation 3x² - 10 = -4x

• a = 3x² b = -10 c = -4x

• a = 3 b = -10 c = -4

• a = 3 b = -4 c = -10

• a = 3 b = 4 c = -10

What are the solutions to ( x - 3 )² = 9?

• x = 6 and x = 0

• x = -3 and x = 45

• x = -6.71 and x = 6.71

• x = -3 and x = 3

What are the solutions for the equation 2x² + 16x = 18

• x = -1 and x = 9

• x = -9 and x = 1

• x = 2 and x= 18

• x = 2 and x = 16

What is the quadratic formula?

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The non-zero root of the equation 3x - 5x² = 0 is_____

• 3⁄5
• 5⁄3
• -3⁄5
• -5⁄3

Factor.

• A

• B

• C

• D

Factor.

• A

• B

• C

• D

Solve by taking square roots:

m² = 25

• m=25, -25

• m=96

• m=-96

• m=5, -5

Solve the following for x by using the Quadratic Formula

2x²+6x=7

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What is the first step to solving THIS equation by completing the square?
a² + 10a + 21 = 0

• Set the equation equal to zero
• Divide 10 by 2 and add the result to both sides
• Add a² and 10a together
• Subtract the 21