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HW – Exponent Worksheet www.westex.org HS, Teacher Website 11-11-14 Warm up—Algebra 2 1. What does 23 mean? Evaluate 2. 22 3. 24 4. 22 23 There are TOO many rules to memorize right away, it’s overwhelming if you try. If you get stuck think of a similar problem that is simple to do using NUMBERS so you can REDISCOVER what the rule is. After doing this enough times you NATURALLY start to memorize the rules. GOAL: I will be able to: 1. evaluate expressions involving exponents. HW – Exponent Worksheet www.westex.org HS, Teacher Website Name ______________________ ALG 2 CPA Date _______ 5.1 Use Properties of Exponents GOAL: I will be able to: 1. simplify expressions involving exponents. Recall: Definition of an exponent: a4 = a a a a where a is called the _____________ and 4 is called the _______________. Power is the result when a base is raised to an exponent. Write in expanded form. a) 36 b) (2x)3 c) 2x3 Rule for Multiplying Powers: When you multiply powers with the same base, you ____________ the exponents. am an = _________ think22 23 = __________________ 1) n4 n3 n2 = 2) (x3y2)(x2y3) = 3) (2abc)(a2b3c4) = Rule for Dividing Powers: When you divide powers with similar bases, you ____________ the exponents. 25 am = _________ think = _____________________ 23 an 4x 8 4) = 2x 6 x 2y 5) = xy 2 x 6y 8z 13 6) = x 4 y 3z 10 Rule for Negative Exponents: When you have a negative exponent, rewrite your expression as a ____________. a m = ______ think2-3 = _____________________ 7) x 2 = 10) x3 = x5 8) x 7 = 11) xy 3z x 4 yz 9) = xy 3 = y7 12) x 2y 8z 3 = x 4 y 9z Rule for the Power of Zero: Anything raised to the power of zero equals ____________. a 0 = _______ think20 = _____________________ 13) x 0 = 14) (xyz )0 = 15) 2x 0 16) (2x )0 Rule for Raising a Power to a Power: When you raise a power to a power, you ____________ the exponents. (am)n = _________ think(23)2 = ____________________ 17) (a4)5 = 18) (x2)3(x4)2 = 19) 2(a3)5 5(a2)3 = Rule for Products or Quotients Raised to a Power: When a product or quotient is raised to a power, make sure you __________________ the exponent to EVERYTHING in the parenthesis. (ab)n = ____________ think(x1y1)3 = ___________________ 20) (2a2b3)4 = 21) (-3r6t4)3 = 22) ( 12 x3y)4 = 23) (3a2)2 (-2a3)3 = 24) (-3)2 = 25) -32 = Practice Simplify. Use only POSITIVE exponents in your final answer! y 1. 3 x 3 2 2. 6 4. 2 x 2 y 5 z 6 5 5 x y 3 4 2 250 x 3 y 2 4 x 3 y 4 6 x 4 y 6 3. 3 4 x y 3xy 4 xy4 5. 3 6 5x y 2