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Unformatted text preview: =4 16 • A: 4 B: ¼ C: 2 D: 1/2 • A: Not possible B: ¼ C: 2 D: 1/2 = 5 1 32 • A: 32/5 B: 2 C: 2 D: 1/160 • Rules of exponents STILL hold, only with a radical form n n n b a b a ⋅ = ⋅ n n n b a b a = • Use these to simplify radical expressions = 25 4 y = + 32 8 A: y2/5 B: y2/25 C: y3/5 D: y/5 A: sqrt(40) B: 20sqrt(2) C: 6sqrt(2) D: Can’t combineunlike terms = 3 4 16 y A: 2y cuberoot(2y) B: 4y2 C: 2 cuberoot(2y4) D: y cuberoot(16y) = 4 3 18 y x A:3x3y4 sqrt(2) B: 3xy2 sqrt(2x) C: 3xy sqrt(2xy2) D: 3y2 sqrt(2x3) • Rationalizing denominator 2 2 8 2 2 2 4 1 4 1 3 3 3 3 3 3 3 3 = = ⋅ = • Falls into the category of simplifying radical expressions • Without a calculator, the division is easier in the final form Assignment 4.5a • 4.5Exercisesp.241242: 2, 3, 4, 5 • Due March 7, 2011...
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 Spring '11
 Exponents, Fractional Exponents

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