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Powers and Exponents

Powers and Exponents. Section 8-1. Warmup:. Define the following acronyms: SAHS LGI WWW LOL MTV DVR SCUBA PEMDAS. An ______________ tells how many times a number, called the ______, is used as a factor. Numbers that are expressed as exponents are called ___________. x n.

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Powers and Exponents

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  1. Powers and Exponents Section 8-1

  2. Warmup: Define the following acronyms: SAHS LGI WWW LOL MTV DVR SCUBA PEMDAS

  3. An ______________ tells how many times a number, called the ______, is used as a factor. Numbers that are expressed as exponents are called ___________. xn

  4. Example 1: Write the expression using exponents. a. b. c. 7

  5. Your Turn! a. b. c. 10

  6. Write (2)(2)(2)(-5)(-5) using exponents.

  7. Your Turn! Write (-1)(-1)(-1)(-1)(3)(3).

  8. You can use the definitionof exponent to write a power as a multiplication expression. Write each power as a multiplication expression. a. b. c.

  9. Your Turn! Write each power as a multiplication expression. a. b. c.

  10. When an expression contains an exponent, simplify the expression using the rules for order of operations. Rule 1: Do all operations with grouping symbols first. Rule 2: Evaluate all powers from left toright. Rule 3: Do all multiplication/division from left to right. Rule 4: Do all addition/subtraction from left to right.

  11. Evaluate each expression. • 4m3 if m = 2 • 3x + y2 if x = -2 and y = -3

  12. Your Turn! Evaluate each expression. • 3a3 if a = -3 b. -5(m + n)2 if m = 4 and n = 2

  13. FUN Facts: 1. Any number raised to the first power… Ex. • Any number raised to the zero power… Ex. • A perfect square is the product of… Ex.

  14. Make these numbers into an equation with exponents: 7. 011 1. 224 8. 238 2. 2337 9. 2235 3. 012 10. 1289 4. 2255 11. 2479 5. 3446 12. 2466 6. 144

  15. Classwork:Practice 8.1 ODD

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