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

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

Question 89430: I am in need of some help
Subtract- Express your answer in simplist form:
[5x-3/6]-[x+3/6]
and Solve:
[x/5x+10]+x-3/x+2]=7/5
Thank you
Click here to see answer by stanbon(57967)

Question 89434: Divide by using synthetic division (x^3 + 3x^2 -34x + 48) divided by (x - 3)
Click here to see answer by Edwin McCravy(8999)

Question 89486: Is the following trinomial a perfect square? Please explain your answer.
x2 + 10x + 25

Click here to see answer by stanbon(57967)

Question 89486: Is the following trinomial a perfect square? Please explain your answer.
x2 + 10x + 25

Click here to see answer by funmath(2925)

Question 89431: I cant seem to figure this out and need some help:
What value of x must be excluded in the following fraction?
x+8/5
Thank you
Click here to see answer by stanbon(57967)

Question 89415: 1) What are some uses of polynomials in the "real world"?

Click here to see answer by sofiyacherni(99)

Question 89387: I would like some help with the following problems. Please explain to me how these problems have to be worked out.
Find the value of the following polynomial for the given value of the variable.
-x2-5x-6,x=-3 and = -2( first 2 is a exponent)
What expression raised to the fourth power is 81x12y8z16?( the numers after the variables are exponents)
The cost in dollars of manufacturing w wing nuts is given by the expression 0.07w+13.3 Find the cost when 375 wing nuts are made. What is the average cost to manufacture one wing nut?

Thank you for taking tie to help me out. Thanks.

Click here to see answer by stanbon(57967)

Question 89330: I am having problems solving these two question
Solve: X/5X+10+x-3/x+2=7/5
and
Solve: 3/7=15/x
thank you
Click here to see answer by ankor@dixie-net.com(15746)

Question 89531: an explosion causes debris to rise vertically with an initial speed of 72 feet per second the formula h=-16t^2+72t
describes the height of the debris above the ground,h,in feet,t seconds after the explosion.
How long will it take for the debris to hit the ground?
Can you tell me how to set up the equation to solve the question above
Click here to see answer by scott8148(6628)

Question 89498: I need help:
Need to simplify
(2+2/5)/(2-1/2)

Click here to see answer by checkley75(3666)

Question 89542: 64v^3-125 (Factor sum or difference of 2 cubes?) Please help!
Click here to see answer by scott8148(6628)

Question 89593: 6p-18/9p divided by 3p-9/p^2+2p
Click here to see answer by malakumar_kos@yahoo.com(315)

Question 89595: Solve the equation:
4(2x+3)-(3x+8)=5-3(4x-2)
Click here to see answer by malakumar_kos@yahoo.com(315)

Question 89583: Write each fraction in simplest form.
-15x^3y^3/-20xy^4
Click here to see answer by malakumar_kos@yahoo.com(315)

Question 89642: I need help with the difference of cubes.
125x^3-27
Click here to see answer by scott8148(6628)

Question 89653: Help!!!
The problem reads:
Subtract. Express your answer in simplest form.

2x over x-8 minus 16 over x-8
I am not certain how to complete this problem. Please advise. Thank you.
Click here to see answer by scott8148(6628)

Question 89643: Solve the equation:
3/4x+7/x=4/x-3
Click here to see answer by omega2007(2)

Question 89655: A triangle has sides 2x – 5, 3x + 1, and 4x + 2. Find the polynomial that represents its perimeter.
I thought the foil method was used here, but my answer just seems wrong. Please show how to solve this problem. Thank you for all your help.
Click here to see answer by scott8148(6628)

Question 89644: simplify the complex fraction:

Click here to see answer by Edwin McCravy(8999)

Question 89724: A man lives on a lot that he thought was a square, 157 feet by 157 feet. When he had it surveyed he discovered that one side was actually 2 feet longer than he thought and the other was actuall 2 feet shorter than he thought. how much less area does he have than he thought he had?
Click here to see answer by checkley75(3666)

Question 89801: the equation h=16t^2+112t gives the height of an arrow. shot upward from the ground with an initial velocity of 112 ft/s, where t is the time after the arrow leaves the ground. find the time it takes for the arrow to reach the height of 180 ft.
Click here to see answer by tutorcecilia(2152)

Question 89796: graph the equation
y=x+1
Click here to see answer by tutorcecilia(2152)

Question 89798: find the x intercepts
y=x^2+x-6
Click here to see answer by tutorcecilia(2152)

Question 89797: graph the equation
y=2x^2
Click here to see answer by tutorcecilia(2152)

Question 89795: graph the equation
y=x^2+1
Click here to see answer by tutorcecilia(2152)

Question 89803: the demand equation for a certain type of printer is given by
d=-200p=35,000
the supply equation is predicted to be
s=-p^2+400p-20,000
find the equilibrium price.
Click here to see answer by jim_thompson5910(28715)

Question 89800: the length of a rectange is 1 cm longer than its width. if the diagonial of the rectangle is 4 cm, what are the dimensions (the length and the width) of the rectangle?
Click here to see answer by ankor@dixie-net.com(15746)

Question 89893: Having trouble with this equation
i dont remember how to multipy fractions. could you show me how to solve the probelm so that I may use it to solve a few other math problems.
Click here to see answer by jim_thompson5910(28715)

Question 89802: a ball is thrown upward from the roof of a building 100 m tall with an initial velocity of 20 m/s. when will the ball reach a height of 80 m?
Click here to see answer by ankor@dixie-net.com(15746)

Question 89791: graph the equation
y=x^2-4x
Click here to see answer by checkley75(3666)

Question 89904: I need to factor x2-6x-16=0. What I have is (x-4),(x-4) or (x-2), (x-8) as my answers. I am having a hard time looking at the example in my book vs. what my teacher gave us for our assignment.
Click here to see answer by stanbon(57967)

Question 89908: x^5-15x^4+54x^3 factor completely
Click here to see answer by stanbon(57967)

Question 89906: 2x^2+16x+32 factor completely
Click here to see answer by jim_thompson5910(28715)

Question 89905: x^3+3x^2+x+3 Factor completely
Click here to see answer by ankor@dixie-net.com(15746)

Question 89936: identify the axis of symmetry, create a suitable table of values,and sketch the graph including t he axis of symmetry.
y=-x^2+6x-2
Click here to see answer by stanbon(57967)

Question 89934: identify the axis of symmetry, create a suitable table of values,and sketch the graph including t he axis of symmetry.
y=x^2-5x+3
Click here to see answer by Edwin McCravy(8999)

Question 89955: solve
5(x-2)^2=3

Click here to see answer by uksraj(9)

Question 89972: solve by using the quadratic formula
x^2+x-2=0
Click here to see answer by uksraj(9)

Question 89971: solve by completing the square
2x^2+8x-5=0
Click here to see answer by stanbon(57967)

Question 89970: find the x intercepts
y=x^2-4x+4
Click here to see answer by stanbon(57967)

Question 89969: the length of a rectangle is 2 cm more than 5 times its width. If the are of the rectangle is 65 cm^2, find the dimensions of the rectangle to the nearest thousandth.
Click here to see answer by stanbon(57967)

Question 89974: Help!!!
Find the zeros of the polynomial function P(x)=x^3-x^2-2x+2 and the multiplicity of each.
Click here to see answer by stanbon(57967)

Question 89957: is the following trinomial a perfect square yes or no
X^2-6x+9
Click here to see answer by ankor@dixie-net.com(15746)

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, 29836..29880, 29881..29925, 29926..29970, 29971..30015