Math Extra Credit

Exponents

100

7⁴

2401

200

4³

64

300

9²

81

400

11²

121

500

15²

225

Algebraic Expressions

100

2x - 10+7x+5

x=3

200

4x+3+5x138

x=15

300

6b+9b=225

b=15

400

8c+8c +16+12=44

c=1

500

4c+8c+9c+15+15=72

c=2

Square roots

100

x²= 144

x= 12

200

x²= 196

x= 16

300

x²= 49

x= 7

400

x²= 2116

x= 46

500

x²= 289

x= 17

Cubed Roots

100

x³= 216

x= 6

200

x³= 125

x= 5

300

x³= 1000

x= 10

400

x³= 343

x=7

500

x³= 729

x= 9

Distributing

100

4(4+12) + 7(15+7)=x

x= 218

200

7(3+4)+ 2(3+4)=x

x=63

300

5(4+3)+9(7+9)=x

x=179

400

7(x+9)+x(8+4)=115

x=2.73...

500

5(2x-6)+5(x+6)=30

x=2