Math 030 Review for Exam #3 Revised Fall 2010 RH/DM
Math 030 Review for Exam #3 Revised Fall 2010 RH/DM
Math 030 Review for Exam #3 Revised Fall 2010 RH/DM
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<strong>Math</strong> <strong>030</strong> <strong>Review</strong> <strong>for</strong> <strong>Exam</strong> <strong>#3</strong> <strong>Revised</strong> <strong>Fall</strong> <strong>2010</strong> <strong>RH</strong>/<strong>DM</strong> 411. Add or subtract as indicated to simplify these radical expressions.a. 7 6 + 9 6 − 2 6 b. 4 18 + 2 c. 3 12 + 4 3− e. ( − 2 6 + 4 3) − ( − 5 6 − 3)d. 4 8 2 50 − 5 7212. Multiply and simplify.a. ( 3 2) • ( − 5 6)b. 3 • ( 2 − 3)c. ( 11 7) • ( 11 + 7)− d. ( 2 + 3) 2e. ( 6 − 2) • ( 6 + 5)f. ( 3 + 8) • ( 12 − 2)13. Simplify. Rationalize denominators, if it applies.a.981b.273c.525d.23e.37f.51114. Solve the equations, and check your solutions.a. x = 5x− 4b. y − 3 − 4 = 2c. x + 2 = 6x+ 7d. x + 1 = −3e. 8x − 4 = −2xf. 2 x − 3 = 1
<strong>Math</strong> <strong>030</strong> <strong>Review</strong> <strong>for</strong> <strong>Exam</strong> <strong>#3</strong> <strong>Revised</strong> <strong>Fall</strong> <strong>2010</strong> <strong>RH</strong>/<strong>DM</strong> 51.a)1.c)1.e)2.a)2.c)2.e)3.a)3.c)3.e)1y − 61.b)x + 3y − 7x − 55x+ 11.d)x − 2x + 2x − 911.f) −3x− 24 + xx + 32x2.b)x + 2x + 2( x + 4)(x − 2)x + 42.d)x( x + 6)x + 34x + 12.f) 1x + 41x − 53.b)x −1x + 27 x +113.d)7xa + 53 2 2x + 3x−15x − x − 43.f)x − 2 x + 1 x + 6x + 3 x + 1 x + 1( )( )( )( )( )( )1 34.a) x = , x = 2 4.b) x = −2 204.c) y = 3 4d) x = −14 4.e) x = 4 , x = −74f)2bbc − 35.a. x = 10 5.b) x = 105.c y = 20 5.d y = 635.e Your pay is $113.006.a)2x − 2x+ 36.b)2 22xy + 3xy−16.c) 6x 2 − 3x+ 16.d)73x4− 4x+ 2x−127.a)37.b) 6 57.c) 8 ab 3 b7.d) 127.e) -3 7.f) 47.g)3 42x y 35y7.h) 1688.a)1 18= 8.b) 2 3 = 82648.c) 12424 −6a8.d) a b =6b1 18.e)4= 8 −66x4 8.f) − 6xy = −2566y8
<strong>Math</strong> <strong>030</strong> <strong>Review</strong> <strong>for</strong> <strong>Exam</strong> <strong>#3</strong> <strong>Revised</strong> <strong>Fall</strong> <strong>2010</strong> <strong>RH</strong>/<strong>DM</strong> 68.g)4 8−a =8.h) 36xy21a8.i)22 −2xx y =8.j) −x 3 =23yx21 1−−8.k) a =8.l) a =26aa9.a) x 9.b) 81 = 92 123=29.c) ( 8) 2 49.e)= 9.d)6 1x = x3 635 x39.f) ( 9) = () 3 = 272210.a) ( 3y )510.b) ( 2b )310.c)23 3 322( 64 y ) 23= ( 64 y ) = (4y)= 16y10.e)10.d)155x = x1833 663 3 9x = x10.f) ( 4x ) 2 = ( 2x) = 8x11.a) 14 611.b) 13 211.c) 10 311.d) − 32 211.e) 3 6 + 5 312.a) -30 312.b) 6 − 312.c) -3812.d) 11+ 6 212.e) − 4 + 3 612.f) 2 + 3 613.b) 9 = 313.d)2 3313.a)13.c)13.e)3 1 =9 355 14.a) x = 1 and x = 413.f)1114.b) y = 39 14.c) x = -1 and x = 314.d) No solution; x = 8 does not check14.f) x = 214.e)5521723No solution; x =1 does not check
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