Questions on Algebra: Polynomials, rational expressions and equations answered by real tutors!

Tutors Answer Your Questions about Polynomials-and-rational-expressions (FREE)

Question 288890: Please help with adding and subtracting B/B-1 + 2B/B^2-1 and A-1/A+1 + A+1/A-1 If possible could you put it on paper and show step by step? Thank you in advance! =)
Click here to see answer by richwmiller(9135)

Question 288907: Given that f(x) is a cubic function with zeros at -6,-2 , and 6, find an equation for f(x) given that f(0)=-5

Click here to see answer by stanbon(57224)

Question 288804: I have to factor this problem completely....9x^2+4y^2. I want to plug in perhaps a 2 and a 3 but I don't see how I can. I am thankful for any help that you can give me.
Click here to see answer by richwmiller(9135)

Question 288854: What is (5x+6) to the 2nd power using the foil method?

Click here to see answer by stanbon(57224)

Question 288854: What is (5x+6) to the 2nd power using the foil method?

Click here to see answer by alegriajoy33(14)

Question 288984: 16x-8=
A) 8x
B)8(2x-x)
C)8(2x-1)
D)8(2x-8)
and how

Click here to see answer by Deina(147)

Question 289074: 5+4x-7=4x-2-x
Click here to see answer by stanbon(57224)

Question 289075: steps to solve this:
(y2+8y-7)-(4y2-10)
Click here to see answer by nyc_function(2733)

Question 289066: How to solve: (x^4 + 5x^3-x^2-3x-1) / (x-1) step by step
Click here to see answer by richwmiller(9135)

Question 289099: The instruction tell me to factor completely given that the binomial following is the factor of the binomial. Please help i thought i had the hang of it it but guess not!!!
x3 + 2x2 - 5x - 6, x + 3
Click here to see answer by stanbon(57224)

Question 289102: Missing ages. Molly’s age is twice Anita’s. If the sum of
the squares of their ages is 80, then what are their ages?
I started this problem and took 80 divided by two which gave me 40, then this is where i got stuck. Am i doing this right ro do i need to go about it differently?
Click here to see answer by stanbon(57224)

Question 289108: -3x² x=-6
Click here to see answer by jim_thompson5910(28476)

Question 289215: 9t^2+30t+25
Click here to see answer by jim_thompson5910(28476)

Question 289151: x+4/x+2=x+1/x+5
Click here to see answer by checkley77(12569)

Question 289226: 9(⌊4(x-5)+19⌋- ⌊3(2x-3)+1⌋). I need to simplify this problem. I came up with : 36x -45 +19 - 42 x -54 +20. Could you please help me continue? Thank you.
Click here to see answer by unlockmath(1599)

Question 289242: Factor Completely: 27x^2y-64x^2
Click here to see answer by checkley77(12569)

Question 289359: When adding polynomials, do i add the exponents together also:
ex:(x^2+x+1)+(2x-9x^2)=? my answer was: 3x^3-5x^2-5x
Click here to see answer by Alan3354(30967)

Question 289359: When adding polynomials, do i add the exponents together also:
ex:(x^2+x+1)+(2x-9x^2)=? my answer was: 3x^3-5x^2-5x
Click here to see answer by richwmiller(9135)

Question 289411: I am not understanding how to do this problem... Most I am getting however, this one is driving me tired... Please help and thank you!!
(x-2)/(x-8)-1/x=(x-7)/x
Please show me how to work the problem... to get the correct answers...
Blessings & Miracles
Alberta...
Click here to see answer by stanbon(57224)

Question 289379: (7/x-2)+(x/x-2)
Click here to see answer by j1mmy94(14)

Question 289432: How do you factor out -1 from the polynomial:
-x - 2y

Thank you!
Click here to see answer by jim_thompson5910(28476)

Question 289441: How do you factor this polynomial:
-4abc - 4ac^2 + 2bc + 2c^2
Thank you!
Click here to see answer by edjones(7569)

Question 289523: The world's largest swimming pool is the Orthlieb pool in Casablanca Morocco. the length is 30 meters longer than 6 times the width. If the perimeter of the pool is 1,110 meters, what are the dimensions of the pool?
Click here to see answer by Fombitz(13828)

Question 289506: how to solve rational expression 5/x^2+3x - 4/x^2-x-12
Click here to see answer by richwmiller(9135)

Question 289566: Express the perimeter of the rectangle as a single rational expression given one side as X divided by X+5 and the other side as X divided by X+6

Click here to see answer by richwmiller(9135)

Question 289569: Your local electronices store is having an end of the year sale. The price on a large screen tv had been reduced by 30%. Now the sale price is reduced by another 30%. If x is the tv's original price the sale price can be represented by (x-0.3x)-0.3(x-0.3x)
a. Factor out (x-0.3x) from each term. Then simplify the resulting expression
b. Use the simplified expression from part a to answer these questions. With a 30% reduction followed by a 30% reduction is the tv selling at 40% of the original price? If not a what percentage of the original price is it selling?

I cant for the life of me figure these 2 problems out.. HELP!!!!
Click here to see answer by jim_thompson5910(28476)

Question 289647: 10-y sq/ysq-100 + ysq+y/ysq-100
Click here to see answer by richwmiller(9135)

Question 289662: How do you divide this polynomial?
x+5 by 2x2+13x+15
Click here to see answer by jim_thompson5910(28476)

Question 289701: simplify:(7m+1)+(-3m-1)
Click here to see answer by unlockmath(1599)

Question 289794: Solve (no need for sentence/units):
3.4x^2 – 8.7x – 17.1 = 0
Click here to see answer by j1mmy94(14)

Question 289797: Good evening,
Please help me solve this rational expression. In addition, please provide the steps.
x/2 + 1 = x/4
Click here to see answer by ankor@dixie-net.com(15624)

Question 289820: Factor each polynomial
x^3-x^2-30x
Click here to see answer by scott8148(6628)

Question 289829: Integration of (4x^2+4x+4)/(x^2+2x+2)(x-1)
Click here to see answer by vleith(2825)

Question 289847: Use synthetic division to write f(x)= 3x^3+17x^2-98x-72 in completely factored form
Click here to see answer by richwmiller(9135)

Question 289846: Use synthetic division and the remainder theorem to evaluate, find the exact value- no decimals
f(-1/3) for f(x)= -6x^3+5x^2-4x+2
Click here to see answer by richwmiller(9135)

Question 289817: what are the steps in solving the problem:
36x^3-64x
Click here to see answer by richwmiller(9135)

Question 289857: please help solve this equation (-a4b5) (-6a3b3)2 please note: the numbers are the powers. i don't know how to write it in that form on here. Thank you!
Click here to see answer by richwmiller(9135)

Question 289895: I have had a very hard time with this and it is making no sense to me at all. Can some one please help me?
Solve this equation.
3x(2x + 1) = 18
Click here to see answer by Fombitz(13828)

Question 289896: Sliced turkey costs $3.20 per pound. Roast beef cost twice as much, and ground beef costs half as much as turkey. find the price of 7.5 pounds of ground beef.
Click here to see answer by richwmiller(9135)

Question 290030: (x-6)(x+1)=18
Click here to see answer by Fombitz(13828)

Older solutions: 1..45, 46..90, 91..135, 136..180, 181..225, 226..270, 271..315, 316..360, 361..405, 406..450, 451..495, 496..540, 541..585, 586..630, 631..675, 676..720, 721..765, 766..810, 811..855, 856..900, 901..945, 946..990, 991..1035, 1036..1080, 1081..1125, 1126..1170, 1171..1215, 1216..1260, 1261..1305, 1306..1350, 1351..1395, 1396..1440, 1441..1485, 1486..1530, 1531..1575, 1576..1620, 1621..1665, 1666..1710, 1711..1755, 1756..1800, 1801..1845, 1846..1890, 1891..1935, 1936..1980, 1981..2025, 2026..2070, 2071..2115, 2116..2160, 2161..2205, 2206..2250, 2251..2295, 2296..2340, 2341..2385, 2386..2430, 2431..2475, 2476..2520, 2521..2565, 2566..2610, 2611..2655, 2656..2700, 2701..2745, 2746..2790, 2791..2835, 2836..2880, 2881..2925, 2926..2970, 2971..3015, 3016..3060, 3061..3105, 3106..3150, 3151..3195, 3196..3240, 3241..3285, 3286..3330, 3331..3375, 3376..3420, 3421..3465, 3466..3510, 3511..3555, 3556..3600, 3601..3645, 3646..3690, 3691..3735, 3736..3780, 3781..3825, 3826..3870, 3871..3915, 3916..3960, 3961..4005, 4006..4050, 4051..4095, 4096..4140, 4141..4185, 4186..4230, 4231..4275, 4276..4320, 4321..4365, 4366..4410, 4411..4455, 4456..4500, 4501..4545, 4546..4590, 4591..4635, 4636..4680, 4681..4725, 4726..4770, 4771..4815, 4816..4860, 4861..4905, 4906..4950, 4951..4995, 4996..5040, 5041..5085, 5086..5130, 5131..5175, 5176..5220, 5221..5265, 5266..5310, 5311..5355, 5356..5400, 5401..5445, 5446..5490, 5491..5535, 5536..5580, 5581..5625, 5626..5670, 5671..5715, 5716..5760, 5761..5805, 5806..5850, 5851..5895, 5896..5940, 5941..5985, 5986..6030, 6031..6075, 6076..6120, 6121..6165, 6166..6210, 6211..6255, 6256..6300, 6301..6345, 6346..6390, 6391..6435, 6436..6480, 6481..6525, 6526..6570, 6571..6615, 6616..6660, 6661..6705, 6706..6750, 6751..6795, 6796..6840, 6841..6885, 6886..6930, 6931..6975, 6976..7020, 7021..7065, 7066..7110, 7111..7155, 7156..7200, 7201..7245, 7246..7290, 7291..7335, 7336..7380, 7381..7425, 7426..7470, 7471..7515, 7516..7560, 7561..7605, 7606..7650, 7651..7695, 7696..7740, 7741..7785, 7786..7830, 7831..7875, 7876..7920, 7921..7965, 7966..8010, 8011..8055, 8056..8100, 8101..8145, 8146..8190, 8191..8235, 8236..8280, 8281..8325, 8326..8370, 8371..8415, 8416..8460, 8461..8505, 8506..8550, 8551..8595, 8596..8640, 8641..8685, 8686..8730, 8731..8775, 8776..8820, 8821..8865, 8866..8910, 8911..8955, 8956..9000, 9001..9045, 9046..9090, 9091..9135, 9136..9180, 9181..9225, 9226..9270, 9271..9315, 9316..9360, 9361..9405, 9406..9450, 9451..9495, 9496..9540, 9541..9585, 9586..9630, 9631..9675, 9676..9720, 9721..9765, 9766..9810, 9811..9855, 9856..9900, 9901..9945, 9946..9990, 9991..10035, 10036..10080, 10081..10125, 10126..10170, 10171..10215, 10216..10260, 10261..10305, 10306..10350, 10351..10395, 10396..10440, 10441..10485, 10486..10530, 10531..10575, 10576..10620, 10621..10665, 10666..10710, 10711..10755, 10756..10800, 10801..10845, 10846..10890, 10891..10935, 10936..10980, 10981..11025, 11026..11070, 11071..11115, 11116..11160, 11161..11205, 11206..11250, 11251..11295, 11296..11340, 11341..11385, 11386..11430, 11431..11475, 11476..11520, 11521..11565, 11566..11610, 11611..11655, 11656..11700, 11701..11745, 11746..11790, 11791..11835, 11836..11880, 11881..11925, 11926..11970, 11971..12015, 12016..12060, 12061..12105, 12106..12150, 12151..12195, 12196..12240, 12241..12285, 12286..12330, 12331..12375, 12376..12420, 12421..12465, 12466..12510, 12511..12555, 12556..12600, 12601..12645, 12646..12690, 12691..12735, 12736..12780, 12781..12825, 12826..12870, 12871..12915, 12916..12960, 12961..13005, 13006..13050, 13051..13095, 13096..13140, 13141..13185, 13186..13230, 13231..13275, 13276..13320, 13321..13365, 13366..13410, 13411..13455, 13456..13500, 13501..13545, 13546..13590, 13591..13635, 13636..13680, 13681..13725, 13726..13770, 13771..13815, 13816..13860, 13861..13905, 13906..13950, 13951..13995, 13996..14040, 14041..14085, 14086..14130, 14131..14175, 14176..14220, 14221..14265, 14266..14310, 14311..14355, 14356..14400, 14401..14445, 14446..14490, 14491..14535, 14536..14580, 14581..14625, 14626..14670, 14671..14715, 14716..14760, 14761..14805, 14806..14850, 14851..14895, 14896..14940, 14941..14985, 14986..15030, 15031..15075, 15076..15120, 15121..15165, 15166..15210, 15211..15255, 15256..15300, 15301..15345, 15346..15390, 15391..15435, 15436..15480, 15481..15525, 15526..15570, 15571..15615, 15616..15660, 15661..15705, 15706..15750, 15751..15795, 15796..15840, 15841..15885, 15886..15930, 15931..15975, 15976..16020, 16021..16065, 16066..16110, 16111..16155, 16156..16200, 16201..16245, 16246..16290, 16291..16335, 16336..16380, 16381..16425, 16426..16470, 16471..16515, 16516..16560, 16561..16605, 16606..16650, 16651..16695, 16696..16740, 16741..16785, 16786..16830, 16831..16875, 16876..16920, 16921..16965, 16966..17010, 17011..17055, 17056..17100, 17101..17145, 17146..17190, 17191..17235, 17236..17280, 17281..17325, 17326..17370, 17371..17415, 17416..17460, 17461..17505, 17506..17550, 17551..17595, 17596..17640, 17641..17685, 17686..17730, 17731..17775, 17776..17820, 17821..17865, 17866..17910, 17911..17955, 17956..18000, 18001..18045, 18046..18090, 18091..18135, 18136..18180, 18181..18225, 18226..18270, 18271..18315, 18316..18360, 18361..18405, 18406..18450, 18451..18495, 18496..18540, 18541..18585, 18586..18630, 18631..18675, 18676..18720, 18721..18765, 18766..18810, 18811..18855, 18856..18900, 18901..18945, 18946..18990, 18991..19035, 19036..19080, 19081..19125, 19126..19170, 19171..19215, 19216..19260, 19261..19305, 19306..19350, 19351..19395, 19396..19440, 19441..19485, 19486..19530, 19531..19575, 19576..19620, 19621..19665, 19666..19710, 19711..19755, 19756..19800, 19801..19845, 19846..19890, 19891..19935, 19936..19980, 19981..20025, 20026..20070, 20071..20115, 20116..20160, 20161..20205, 20206..20250, 20251..20295, 20296..20340, 20341..20385, 20386..20430, 20431..20475, 20476..20520, 20521..20565, 20566..20610, 20611..20655, 20656..20700, 20701..20745, 20746..20790, 20791..20835, 20836..20880, 20881..20925, 20926..20970, 20971..21015, 21016..21060, 21061..21105, 21106..21150, 21151..21195, 21196..21240, 21241..21285, 21286..21330, 21331..21375, 21376..21420, 21421..21465, 21466..21510, 21511..21555, 21556..21600, 21601..21645, 21646..21690, 21691..21735, 21736..21780, 21781..21825, 21826..21870, 21871..21915, 21916..21960, 21961..22005, 22006..22050, 22051..22095, 22096..22140, 22141..22185, 22186..22230, 22231..22275, 22276..22320, 22321..22365, 22366..22410, 22411..22455, 22456..22500, 22501..22545, 22546..22590, 22591..22635, 22636..22680, 22681..22725, 22726..22770, 22771..22815, 22816..22860, 22861..22905, 22906..22950, 22951..22995, 22996..23040, 23041..23085, 23086..23130, 23131..23175, 23176..23220, 23221..23265, 23266..23310, 23311..23355, 23356..23400, 23401..23445, 23446..23490, 23491..23535, 23536..23580, 23581..23625, 23626..23670, 23671..23715, 23716..23760, 23761..23805, 23806..23850, 23851..23895, 23896..23940, 23941..23985, 23986..24030, 24031..24075, 24076..24120, 24121..24165, 24166..24210, 24211..24255, 24256..24300, 24301..24345, 24346..24390, 24391..24435, 24436..24480, 24481..24525, 24526..24570, 24571..24615, 24616..24660, 24661..24705, 24706..24750, 24751..24795, 24796..24840, 24841..24885, 24886..24930, 24931..24975, 24976..25020, 25021..25065, 25066..25110, 25111..25155, 25156..25200, 25201..25245, 25246..25290, 25291..25335, 25336..25380, 25381..25425, 25426..25470, 25471..25515, 25516..25560, 25561..25605, 25606..25650, 25651..25695, 25696..25740, 25741..25785, 25786..25830, 25831..25875, 25876..25920, 25921..25965, 25966..26010, 26011..26055, 26056..26100, 26101..26145, 26146..26190, 26191..26235, 26236..26280, 26281..26325, 26326..26370, 26371..26415, 26416..26460, 26461..26505, 26506..26550, 26551..26595, 26596..26640, 26641..26685, 26686..26730, 26731..26775, 26776..26820, 26821..26865, 26866..26910, 26911..26955, 26956..27000, 27001..27045, 27046..27090, 27091..27135, 27136..27180, 27181..27225, 27226..27270, 27271..27315, 27316..27360, 27361..27405, 27406..27450, 27451..27495, 27496..27540, 27541..27585, 27586..27630, 27631..27675, 27676..27720, 27721..27765, 27766..27810, 27811..27855, 27856..27900, 27901..27945, 27946..27990, 27991..28035, 28036..28080, 28081..28125, 28126..28170, 28171..28215, 28216..28260, 28261..28305, 28306..28350, 28351..28395, 28396..28440, 28441..28485, 28486..28530, 28531..28575, 28576..28620, 28621..28665, 28666..28710, 28711..28755, 28756..28800, 28801..28845, 28846..28890, 28891..28935, 28936..28980, 28981..29025, 29026..29070, 29071..29115, 29116..29160, 29161..29205, 29206..29250, 29251..29295, 29296..29340, 29341..29385, 29386..29430, 29431..29475, 29476..29520, 29521..29565, 29566..29610, 29611..29655, 29656..29700, 29701..29745, 29746..29790, 29791..29835