Quadratic Formula with Radicals

Solve using the Quadratic Formula.

• A

• B

• C

• D

The discriminant is

• aX²  + bX  +  c

• b - 4ac

• b² - 4ac

• b² + 4ac

If the discriminant is positive, then the solution will be

• one real solution

• two real solutions

• no real solutions

• one imaginary solution

Determine the value of the discriminant and name the nature of the roots for the following:
x² + 7x + 13
Remember:  b² - 4ac

• 400, 2 real root 

• 0, 1 real root with a multiplicity of 2

• -400, 2 imaginary roots

• -3, 2 imaginary roots

• A
• B
• C
• D

Solve

• v = -14

• v = 14

• No Solution

• v = 28

• A.

• B.

• C.

• D.

• A.

• B.

• C.

• D.

Which of these is the correct quadratic formula?

What is the discriminant of -2x² − x − 1 = 0

• 76

• -7

• 9

• none of these