Quadratic Formula Quiz

What is the quadratic formula used for solving quadratic equations?

• x = (b ± √(b² - 4ac)) / a

• x = (b ± √(b² + 4ac)) / 2a

• x = (-b ± √(b² + 4ac)) / a

• x = (-b ± √(b² - 4ac)) / 2a

In the quadratic formula, what does the term 'b² - 4ac' represent?

• The discriminant

• The sum of roots

• The coefficient of x

• The product of roots

What are the solutions for the equation 4b² + 8b + 3 = 0 using the quadratic formula?

• 0 and 4

• 2 and -2

• 1 and -3

• -1/2 and -3/2

How do you simplify the expression √(64 - 48) in the quadratic formula?

• √4

• √16

• √32

• √8

What are the solutions for the equation 2x² - 3x - 20 = 0 using the quadratic formula?

• 2 and -2

• 3 and -3

• 4 and -5/2

• 1 and -1

What is the simplified form of the expression √(169) in the quadratic formula?

• 10

• 12

• 11

• 13

What are the solutions for the equation x² + 2x - 3 = 0 using the quadratic formula?

• 1 and -3

• 2 and -2

• 3 and -1

• 4 and -4

How do you simplify the expression √(16) in the quadratic formula?

• 3

• 2

• 4

• 1

What are the solutions for the equation 5R² - 80 = 0 using the quadratic formula?

• 6 and -6

• 4 and -4

• 5 and -5

• 7 and -7

What is an alternative method to solve the equation 5R² - 80 = 0?

• Add 80 and solve R² = 5

• Multiply by 5 and solve R² = 80

• Divide by 5 and solve R² = 16

• Subtract 5 and solve R² = 80