Solve the Quadratic
Solve the Quadratic part 2
The Discriminant
Literal equations
Applications
100

solve for y:

y2 -2 = 142

What is y = -12 or y = 12

100

Solve for x:

x2 +14x = 15

What is x = 1 or x = -15

100

What is the discriminant:

2h2 +7h +4 =0

What is 17

100

Solve for d:

c = 9d2

What is

100

Solve for x:

Two sides of a rectangle are (x + 5) and (x -7) feet.  The area is 64ft2

What is x = 11 (why did we not use the x = -9)?

200

solve for y:

(y - 3)2 =36

What is y = 9 or y = -3

200

Solve for x:

3x2 - 18x = 21

What is x = 7 or x = -1

200

What is the discriminant:


200

Solve for r: 

What is

200

What is 3 cm.

300

Solve for y:

y2 - 6y +9 = 16

What is y = 7 or y = -1

300

Solve for x:


300

Classify the solutions to this equation using the discriminant:

3e - 9e2 = 6

What is two non real solutions, two imaginary solutions or two complex solutions
300

Solve for x:


300

Brian wants to increase the size of his 3ft by 6ft garden.  He wants to increase each side by the same amount and to double the area.  What amount should he add to each side?

What is about 1.7 ft

400

Solve for x:


400

The Quadratic Formula is:

What is

400

Classify the solutions to this equation using the discriminant:

4 + 12d = -9d2

What is one real solution.

400

Solve for t:


What is 

400

What is the equation to solve for x.


500

What number should be added to the expression to create a perfect square trinomial:

x2 - 8x

What is 16

500

Using the Quadratic formula solve for x:

x2 + 9x -22 = 0

What is x = 2 or x = -11

500

What is the discriminant:

14x = -3x2 - 8

What is 100

500

Solve for x:


500

Molly throws a softball straight up with an initial velocity of 20ft/s.  the release point is 5ft above ground.  After how many seconds will the softball hit the ground?

What is about 1.5 sec.

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