K&D Solving quadratics

Square Root

100

√4

2,-2

200

√16

4,-4

300

√144

12,-12

400

√196

14,-14

500

√529

15,-15

Solving with Square roots

100

x²=1

1,-1

200

x²=49

7,-7

300

x²-1=63

8,-8

400

2x²=288

12,-12

500

3x²-5=103

6,-6

Solving with quadratic formula

100

x²+x-12=0

x=-4,3

200

2a²-5a+2=0

a=2,1/2

300

4n²-4n-73=-10

n=9/2,-7/2

400

2x²-8x+5=-4

No Solution

500

4k²-5k=4-6k

k=(-1+sqrt65)/8, (-1-sqrt65)/8

Parts of the quadratic formula

100

In the equation x²-4x+7, what is the a value?

1

200

In the equation 8x²-2x+121, what is the b value?

-2

300

In the equation 2x²-2x-2, what is the c value?

-2

400

In the equation 2x²-5x-6=3x, what is the b value?

-8

500

What is the quadratic formula?

x=(-b+/- √b²-4ac)/2a