Exponents and Polynomials - XYZ Custom Plus

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810Chapter 12 Exponents and Polynomials30. __12xy 2 − 18x−6x−2y 2 + 331. _x 2 y − x 3 y 232. _x 2 y − x 3 y 2xx 2xy − x 2 y 2 y − xy 233. _x 2 y − x 3 y 2−x 2 y−1 + xy34. _ab + a 2 b 2ab1 + ab35. __a 2 b 2 − ab 2−ab 2−a + 136. __a 2 b 2 c + ab 2 c 2abcab + bc39. ___10a 2 − 15a 2 b + 25a 2 b 240. __11a 2 b 2 − 33ab5a 2−11ab2 − 3b + 5b 2 −ab + 337. __x 3 − 3x 2 y + xy 238. __x 2 − 3xy 2 + xy 3xxx 2 − 3xy + y 2 x − 3y 2 + y 341. __26x 2 y 2 − 13xy−13xy−2xy + 142. __6x 2 y 2 − 3xy43. __4x 2 y 2 − 2xy44. __6x 2 a + 12x 2 b − 6x 2 c6xy4xy36x 2xy − _ 1 2 xy − _1 2 _ a 6 + _ b 3 − _ c 6 45. ___5a 2 x − 10ax 2 + 15a 2 x 246. __12ax − 9bx + 18cx20a 2 x 26x 2_ 14x − _ 12a + _ 3 4 _ 2ax − _ 3b2x + _ 3cx 48. __27x 2 − 9x 3 − 18x 4−18x 3− 3 _2x + 1 _2 + xA Divide. Assume all variables represent positive numbers. [Example 5]49. __9a 5m − 27a 3mA3a 2m3a 3m − 9a mSimplify each numerator, and then divide.53. 2x 3 (3x + 2) − 3x 2 (2x − 4) ___2x 23x 2 − x + 656. __________________(x − 3)2 − (x + 3) 23x−459. Find the value of each expressionwhen x is 2.a. 2x + 3710x + 15b. _57c. 10x + 32350. __26a 3m − 39a 5m51. ___10x 5m − 25x 3m + 35x m2 − 3a 2m 2x 4m − 5x 2m + 713a 3m5x m54. _________________________5x 2 (6x − 3) + 6x 3 (3x − 1)3x6x 3 + 8x 2 − 5x57. (x + 5)2 + (x + 5)(x − 5) ___2xx + 560. Find the value of each expressionwhen x is 5.a. 3x + 217b. _6x 2 + 4x2x17c. 6x 2 + 215247. __16x 5 + 8x 2 + 12x12x 3_ 4x23 + _ 23x + _ 1 x 252. ______________________ 18x 2m + 24x 4m − 30x 6m6x 2m3 + 4x 2m − 5x 4m55. __(x + 2)2 − (x − 2) 22x458. _______________________(x − 4)2 + (x + 4)(x − 4)2xx − 461. Evaluate each expression forx = 10.a. _3x + 8 219b. 3x + 434c. 3 _2 x + 419NOT FOR SALE. Copyright XYZtextbooks Last re
12.6 Problem Set 81162. Evaluate each expression forx = 10.a. _5x − 6 222b. 5x − 34763. Find the value of each expressionwhen x is 2.a. 2x 2 − 3x2b. __10x 3 − 15x 25x264. Find the value of each expressionwhen a is 3.a. −4a + 2−10b. _8a 2 − 4a−2a−10NOT FOR SALE. Copyright XYZtextbooks Last rec. 5 _2 x − 32265. Comparing Expressions Evaluate the expression and the expression 2x + 3 when x = 2.Both equal 7._ 10x + 15567. Comparing Expressions Show that the expression _3x + 8 is2not the same as the expression 3x + 4 by replacing xwith 10 in both expressions and simplifying the results._ 3(10) + 8 = 19; 3(10) + 4 = 342Getting Ready for the Next Section66. Comparing Expressions Evaluate the expression _6x 2 + 4xand the expression 3x + 2 when x = 5.Both equal 17.68. Comparing Expressions Show that the expression _____ x + 10x isnot equal to 10 by replacing x with 5 and simplifying._ 5 + 10 = 35Divide.____________69. 27) 3962 70. 13 ) 18780 71. _2x 2 + 5xx146 _ 2027 1,444 _ 813 2x + 5Multiply73. (x − 3)xx 2 − 3xSubtract.77. (x 2 − 5x) − (x 2 − 3x)−2x74. (x − 3)(−2)−2x + 672. _______________7x 2 + 9x 3 + 3x 7x 3 7_ x + 9 + 3x475. 2x 2 (x − 5)76. 10x(x − 5)2x 3 − 10x 2 10x 2 − 50x78. (2x 3 + 0x 2 ) − (2x 3 − 10x 2 ) 79. (−2x + 8) − (−2x + 6)10x 2 22x80. (4x − 14) − (4x − 10)−4
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Previewkey WordsDefinition752Scient
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754Chapter 12 Exponents and Polynom
Page 9 and 10: 12.1 Problem Set 759Problem set 12.
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