7-1 Study Guide and Intervention - Weebly
[Pages:2]NAME _____________________________________________ DATE ____________________________ PERIOD _____________
7-1 Study Guide and Intervention
Multiplication Properties of Exponents
Multiply Monomials A monomial is a number, a variable, or the product of a number and one or more variables with nonnegative integer exponents. An expression of the form is called a power and represents the product you obtain when x is used as a factor n times. To multiply two powers that have the same base, add the exponents.
Product of Powers
For any number a and all integers m and n, = +.
Example 1: Simplify (3)(5).
(36)(52) = (3)(5)(6 2)
Group the coefficients and the variables
= (3 5)(6 + 2) Product of Powers
= 158
Simplify.
The product is 158.
Example 2: Simplify (?4b)(3). (?43b)(325) = (?4)(3)(3 2)(b 5)
= ?12(3 + 2)(1 + 5) = ?1256 The product is ?1256.
Exercises Simplify each expression.
1. y(5) y6
2. 2 7 n9
3. (?72)( 4) ?7x6
4. x(2)(4) x7
5. m 5 m6
6. (?3)(? 4) x7
7. (22)(8a) 16a3
8. (r n)(r 3)(2) r2n6
9. (2y)(4x3) 4x3y4
10. 13(23b)(63) 4a3b4
11. (?43)(?57) 20x10
12. (?324)(2j6) ?6j3k10
13.
(52b3)( a3b2c7
15ab
4)
14. (?5xy)(42)(4) ?20x3y5
15. (103y2)(?2x5z) ?20x4y6z3
Chapter 5
5
Glencoe Algebra 1
NAME _____________________________________________ DATE ____________________________ PERIOD _____________
7-1 Study Guide and Intervention (continued)
Multiplication Properties of Exponents
Simplify Expressions An expression of the form () is called a power of a power and represents the product you obtain when is used as a factor n times. To find the power of a power, multiply exponents.
Power of a Power Power of a Product
For any number a and any integers m and p, () = . For any numbers a and b and any integer m, () = .
We can combine and use these properties to simplify expressions involving monomials.
Example: Simplify (-)()4. (-22)3 (2)4 = (-22)3(8)
= (-2)3(3) ( 2)3 (8) = (-2)3(3)( 8) ( 2)3 = (-2)3(11) ( 2)3 = ?8116 The product is ?8116.
Power of a Power Power of a Product Group the coefficients and the variables Power of a Product Power of a Power
Exercises
Simplify each expression. 1. (5)2
y10
2. (7)4 n28
3. (2)5(3) x13
4. ?3(4)3 ?3a3b12
7. (42)2(3) 16a4b3
5. (-34)3 ?27a3b12
8. (4)2(3) 16x2b3
6. (42)3 64x6b3
9. (24)5 x10y20
10. (232)( 3)2 2a3b8
11. (-4)3(-22)3 512x9y3
12. (-323)2(22)3 72j10k9
13.
(252
)3
(1
5
2
)
625a8b5f 2
14. (2)2(?32)(44) ?48x4y6
15. (2322)3(2)4 8x17y6z10
16. (?265)(?632)()3 12n12y10
17. (?334)(-33)4 ?243a15n8
18. ?3(2)4(45)2 ?768x14y2
Chapter 7
6
Glencoe Algebra 1
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