Math

solving by factoring

100

x²-12x+27=0

1x-9, 1x-3

200

x²-64=0

(x+8) (x-8)

300

2x²+5x+3=0

2x+3, x+1

400

x²+14x+49=0

x+7, x+7

500

x²-4x-21=0

x+7, x+3

discriminant

100

2x²+8x-8=0

128

200

5x²+x+1=0

-19

300

x²+6x+1=0

32

400

3x²+3x-3=0

45

500

5x²+4x-2=0

14

converting degrees to radians

100

300 x pie/180

5pie/3

200

315 x pie/180

3pie/4

300

140 x pie/180

7pie/9

400

30 x pie/180

1pie/6

500

500 x pie/180

9pie/3

subtract

100

3x180/4

135

200

5x180/2

450

300

pie x 180/3

188.5

400

7x180/4

315

500

10x180/5

360