Quadratics

Factoring

100

x²+5x=0

x=-5 and x=0

200

k²+12k-45=0

k=-15 and k=3

300

b² + 8b + 7

b = -7

b = -1

400

a² + 11a + 18

a = -2

a = -9

500

n² − n − 56

n = -7

n = 8

Quadratic Formula

100

-9x^2-6x-1=0

x=-1/3

200

b² − 4b + 4 = 0

b = 2

300

x²+ 4x + 3 = 0

x=-1

x = -3

400

5x² = 80

x = 4

x = -4

500

x² + 2x − 1 = 2

x = 1

x = -3

Complete the Square

100

Fill in the blank to complete the square: x²-6x+____

9

200

Fill in the blank to complete the square: x²+10x+____

25

300

Fill in the blank to complete the square: x²+9x+____

81/4

400

x²-7x+12=0

x=4

x=3

500

x²-8x+13=0

x=2.27

x=5.73

Solve using Square Roots

100

3x²=108

x=6 and x=-6

200

5x²+4=20

x=2 and x=-2

300

(x+3)² = 9

x=0

x = 6

400

(x-4)² = 25

x=9

x = -1

500

(x-2)²=43

x=8.55

x = -4.55

Any Method

100

 x²+5x+6 = 0

x = -3

x =-2

200

x²-3x-10 = 0

x = 5

x = -2

300

x²-18x+45 = 0

x = 15

x = 3

400

3x²+3x-x-1 = 0

x = 1/3

x = -1

500

11x²+18x+7 = 0

x = -1

x = -7/11