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# Exam1review - Review for MAC 1105 Exam 1 1. Indicate...

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Review for MAC 1105 Exam 1 1. Indicate whether each of the following statements is true or false: (a) ( x + y ) 4 = x 4 + y 4 . (b) 1 x + 1 y = 2 x + y (c) 4 p 4 x 4 = 4 p 4 x 2. Given the set ± ± 4 9 ; ± p 16 ; ± 6 ; 0 ; ± 2 ; 0 : 8 ; 3 3 ; p 5 ; 12 : 2 ² , list all members of the set that are (a) integers (b) whole numbers (c) rational numbers (d) irrational numbers. 3. Evaluate if possible: If not possible, say so. (a) p ( ± 3) 4 (b) ± 2 0 (c) p 7 ± 4 2 (d) 5 0 (e) 12 ² 2 ³ 3 ± 4 2 ± 3 2 + 1 5 ± j ± 6 j (f) 12 + j x 0 ± 12 j for any nonzero real number x (g) 16 ± 3 = 4 (h) ( ± 16) 1 = 4 4. Write without negative exponents: simplify your answer completely. a) 27 ³ ± 3 xy ± 2 ´ ± 3 x 2 y 4 b) µ 6 x ± 2 y ± 1 8 x 1 = 2 y ± 2 ± 2 5. If x = ± 1 and y = 3, ±nd a) j 2 x ± y j j y ± x j ± j x + y j b) x ± 1 + y ± 1 x ± 2 ± y ± 2 c) p x 2 + y 2 .

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6. Write without absolute value and simplify: j p 2 ± 5 j + j p 2 ± 1 j 7. Perform the operations: a) (2 y + 9 x )( y ± 3 x ) ± y (3 y ± 2 x ) b) 17 + 81(2) ± 4[3 ± 6(1 ± 2)] c) ± x 2 ± 3 y ² 2 8. Factor completely if possible: (a) 9 x 2 y 3 ± 15 x 4 y 5 (b) 16 x 2 +8
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## This note was uploaded on 06/07/2011 for the course MAC 1105 taught by Professor Picklesimer during the Summer '10 term at University of Florida.

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Exam1review - Review for MAC 1105 Exam 1 1. Indicate...

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