Solving quadratics

Factor

100

x^2-16=0

x=4 , x=-4

200

x^2-2x=24

x=6 , x =-4

300

2x^2-5x-12

x = -3/2 , x =4

Square root

100

x^2=9

x = +-3

200

x^2 - 11 = 0

x=+-sqrt11

300

(x-3)^2-8=5

x=3+-sqrt13

Quadratic formula

100

x^2+4x-12=0

x=-6,x=2

200

x^2-3x-2=0

x=(3+-sqrt17)/2

300

2x^2+6x=13

x=(-3+-sqrt35)/2

Complete the square

100

x^2+2x-1=0

x=-1+-sqrt2

200

x^2+10x=1

x=-5+-sqrt26

300

Bonus 100 points if you simplify the radical!

x^2=6x+11

x=3+-2sqrt5