Practice with Quadratic Formula

Determine the values of

a, b, and c:

x² – 2x – 3 = 0

• a = x², b = -2, c = -3

• a = 1, b = -2, c = -3

• a = 1, b = 2, c = 3

• a =1, b = -2, c = 3

Name "c" for the equation
4x² - 5x + 7 = 10

• 7

• 17

• -5

• -3

What should you do first in solving this equation?

x² + 6x - 13 = 3

• Factor

• Write down: a = 1, b = 6, c = -13

• Subtract 3 from both sides.

• Add 3 to both sides.

The discriminant is

• aX²  + bX  +  c

• b - 4ac

• b² - 4ac

• b² + 4ac

Simplify 
√-25

• -5i

• 5

• 5i

• -5

Given the equation 10x² -6x=0, what is the value of C?

• 0

• -6

• 10

• x

Simplify the following radical: √24

• 2√6

• 4√6

• 2√12

• 3√8

Simplify the following radical: √150

• 5√15

• 5√2

• 5√6

• 15√5

What  are the solutions of this graph?

• -2 and 3

• -1/2 and -6

• -2 and -6

• 3 and -6