Basic Quadratic Equations Using the Quadratic Formula

Use the quadratic formula to find the solutions for

y = 2x² - 9x + 5

• -8.14 and 6.14

• -4.07 and 3.07

• 3.9 and 0.6

• ZERO solutions

What is/are the value/s of x in the equation

x² + 5x + 4 = 0 ?

• x = 5 or x = 0

• x = 4 or x = 1

• x = 5 or x = 1

• x = -4 or x = -1

Solve x² - x - 12 = 0

• x = -6 or x = 2

• x = 12 or x =-1

• x = -11 or x = 1

• x = 4 or x = -3

What is the quadratic term in the equation 3y² + y + 4 = 0

• y

• 4

• 3y²

• 3y

What is the quadratic formula?

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How many solutions are there in the equation x² + 10x + 25 = 0?

• 2

• 3

• 4

• 5

Solve Using the Quadratic Formula 
2x² + 7x - 15 = 0

• -1.5 or 5

• No Solution

• -5 or 1.5

• 0.7 or 5

If b²-4ac is positive, the quadratic equation has:

• Two real solutions that are different

• Two imaginary solutions that are different

• One real solution

• One imaginary solution

If b²-4ac is negative, the quadratic equation has:

• Two real solutions that are different

• Two imaginary solutions that are different

• One real solution

• One imaginary solution

Solve x² - 5x + 10 = 0

• (5 - i√15)/2  ,  (5 + i√15)/2

• (5 - √15)/2  ,  (5 + √15)/2

• (5 - i√65)/2  ,  (5 + i√65)/2

• (5 - √65)/2  ,  (5 + √65)/2