Algebra I Chapter 7 Notes Rules of Exponents. Section 7-1 Monomial – Constant – Base – Exponent -
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7.0 Exponent Laws (Solutions).notebook October 13, 2015
Chapter 7 Exponential Functions
7.0 Exponent Law Review
7.0 Exponent Laws (Solutions).notebook October 13, 2015
What does an exponent represent?
An exponent represents the number of times that a base is to be multiplied by itself.
Example: x3 = x x x
Special exponentsPerfect Squares
Perfect Cubes
Perfect 4ths
14 = 1
24 = 16
34 = 81
44 = 256
12 = 1 72 = 49
22 = 4 82 = 64
32 = 9 92 = 81
42 = 16 102 = 100
52 = 25 112 = 121
62 = 36 122 = 144
13 = 1
23 = 8
33 = 27
43 = 64
53 = 125
63 = 216
7.0 Exponent Laws (Solutions).notebook October 13, 2015
Write the number as a power of another number. The first one is done for you. If you know of more than 1 answer, write them all.
36 = 62 64 = 26, 43, 82
1000 = 103 125 = 53
81 = 34, 92 16 = 24, 42
1. Law of Multiplication
xm · xn = xm+n ex: x5 · x3 = x8
2. Law of Division
xm ÷ xn = xmn ex: x11 ÷ x7 = x4
7.0 Exponent Laws (Solutions).notebook October 13, 2015
3. Power Law
(xm)n = xmn ex: (x6)3 = x18
4. Fractional Exponents
xm/n = ( √x ) ex: 82/3 = ( ∛8 )2 = 22 = 4n m
5. Zero Principle
xm ÷ xm = xmm = x0 = 1 ex: y0 = 1 110 = 1
6. Negative Exponents
xm = 1 ex: y3 = 1 p7 = 1 xm y3 p7
7.0 Exponent Laws (Solutions).notebook October 13, 2015
Classfun simplify each of the following:
1. p4 x p7 2. W10 x W3 x W8 3. C8 C3
4. (a3)6 5. (g h)4 6. (g3 h2)5
7. m6 3 8. 50 9. d5 x d1 x d0 n5
10. 33
11. (1/2)2 12. (((√3 )6)0)4 13. (81)1/2
14. (27)1/3 15. (49)1/2 16. (27)4/3
17. 163/4 18. 40.5 19. (51/3)6
20. (91/2 + 161/2)2
Homework
Exponent Law Worksheet