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

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

Question 264460: Factor completely 6y2-2yz. Could you show how you got your awnser cause i would like to know how to complete the rest myself.
Click here to see answer by Earlsdon(6294)

Question 264478: The Nutty Shoppe has 10 kg of mixed pecans and cashews which sell for $8.40 per kilogram. Cashews alone sell for $8 per kilogram, and pecans sell for $9 per kilogram. How many kilograms of cashews are there in the mix?
Click here to see answer by CharlesG2(828)

Question 264438: find the greatest common factor for the group of terms.
-42a^3,7a^4
I believe -7 is part of the answer, but not sure what to do with the variables.
Click here to see answer by Earlsdon(6294)

Question 264509: find all numbers for the rational expression is not definded
-3/2x
Click here to see answer by jim_thompson5910(28717)

Question 264539: subtract the polynomials.
(-8r^2+7r+2)-(9r^2+2)
simplify answer.
please help....
Click here to see answer by jim_thompson5910(28717)

Question 264702: Multiplying a polynomial by a monomial.
3y(y-3)+5=3(y<2>-2y)-2y
sorry i dont know how to make a exponet on th computer so youll see i but them in <> hope you understand
this is what i did : 3y(y-3)=5=3(y<2>-2y)-2y <-- original problem
3y<2>-3+5=3y<2>-2y-2y <-- distributive property
6y<2>-4y=2 <-- combining like terms
and now i dont know if i combine 6y<2> and -4y

thanks :)
Click here to see answer by jim_thompson5910(28717)

Question 264715: how do I solve for x in 6x^2-x^3=64/3
Click here to see answer by Edwin McCravy(8999)

Question 264797: a^2/a-3 = 9/a-3
Click here to see answer by mananth(12270)

Question 264871: What is answer in Lowest terms ((5+5k)/4) + ((1+k)/8)
Work done:
((5+5k)/4) + ((1+k)/8) =
(2(5+5k)/8) + ((1+k)/8) =
((2(5+5k))+(1+k))/8 =
This is the answer per my book/example:
((2x5+1)(1+k))/8 = 11(1+k)/8
What happened to the (2(5+5k)) and where did the +1 come from?
Click here to see answer by Theo(3504)

Question 264952: How to find a “third” first-degree factor of x^3 + 6x^2 – 7x – 60
Click here to see answer by Edwin McCravy(8999)

Question 264964: ok, i don't get this stuff.
X2 x X5 =X7
(this next part i understand how they did this)
(X4)2 = X8
(i don't get how they got this)
(XY)3 = X3Y3
how did they get this answer?
Click here to see answer by stanbon(57984)

Question 264968: solve.
7/y=8/y-1/5
please help....
Click here to see answer by stanbon(57984)

Question 264983: (x+1)/(x+3) = (x^2-11x)/(x^2+x-6) + (x-3)/(x-2)
Click here to see answer by JBarnum(2044)

Question 265106: how to solve 8x^2-2x over 2x
8x^2-2x
_______ =
2x

Click here to see answer by Alan3354(31538)

Question 265158: if you have 3r^2s+4rs^3+rs, does order matter when writing this, or is there an order?
Click here to see answer by checkley77(12569)

Question 265254: Write a polynomial in factored and standard form:
P is of degree 2; P(0) = 14; zeros : 1 and -2
Click here to see answer by drk(1908)

Question 265275: Find all zeros of P(x)= x^2+3x^2-4x-12
Click here to see answer by dabanfield(803)

Question 265276: List all possible rational roots:
8x^3+10x^2-11x+2=0
Click here to see answer by stanbon(57984)

Question 265322: how do you solve 2b^2+13b-7 using trinomials
Click here to see answer by jim_thompson5910(28717)

Question 265371: Could someone please help me with this one;
10,000 = (SQRT x/360) * 0.15 * 200,000
Click here to see answer by mananth(12270)

Question 265371: Could someone please help me with this one;
10,000 = (SQRT x/360) * 0.15 * 200,000
Click here to see answer by unlockmath(1614)

Question 265325: solve 2b^2+13b-7
Click here to see answer by mananth(12270)

Question 265294: How do simplify that equation
15y^2-30y-45
_____________ <---thats supposed to look like a fraction
5y^2+10y-15
Click here to see answer by ankor@dixie-net.com(15747)

Question 265311: how do you solve y^2-5y+4 using trinomials
Click here to see answer by Alan3354(31538)

Question 265696: subtract (-6a+2b-c)-(-5b+8c-7d)
Click here to see answer by drk(1908)

Question 265696: subtract (-6a+2b-c)-(-5b+8c-7d)
Click here to see answer by stanbon(57984)

Question 265697: multiply and simplify (2x)^2*(2x)^9
Click here to see answer by drk(1908)

Question 265700: factor 81b^6-3d^6
Click here to see answer by drk(1908)

Question 265700: factor 81b^6-3d^6
Click here to see answer by stanbon(57984)

Question 265780: I am working on polynomials and was wondering if anyone knew the solution to the equation 10x-10y?

Click here to see answer by Alan3354(31538)

Question 265777: 11x=6x^2+3
Click here to see answer by Edwin McCravy(8999)

Question 265831: I attempted this problem but I am not sure of the answer. Can someone check to see if my answer is correct. Thanks.
36y^4+36y^3+6y-1= 6y^2+6y-1
Click here to see answer by Edwin McCravy(8999)

Question 265840: I just wanted to make sure I am doing division of polynomials is correct.
=
Click here to see answer by Edwin McCravy(8999)

Question 265859: Find the solution set

Click here to see answer by JBarnum(2044)

Question 265882: A rectangular lawn is 24 feet wide by 32 feet long. A sidewalk will be built along the inside edges of all four sides. The remaining lawn will have an area of 425 square feet. How wide will the walk be? Please show step-by-step work (full work) to make understanding how to solve the problem easier.
Click here to see answer by JBarnum(2044)

Question 266073: How do i solve 4a^2-36b^2=
Click here to see answer by stanbon(57984)

Question 266087: how do i factor n^3+5n^2-4n-20 as a polynomial
Click here to see answer by jim_thompson5910(28717)

Question 266064: how do i figure out the answer to what is the sum of the polynomials 3a^2b+2a^2b^2
Click here to see answer by Alan3354(31538)

Question 266133: (3x-5)^3
solve
Click here to see answer by user_dude2008(1861)

Question 266135: how do i factor 5y^2-90 as a polynomial
Click here to see answer by user_dude2008(1861)

Question 266172: Solve by completing the square.
x^2 + 4x - 5 = 0
Click here to see answer by asuar010(324)

Question 266168: Solve by completing the square. x^2 - 22x = 10
Click here to see answer by asuar010(324)

Question 266155: Give exact and approximate solutions to three decimals places... (x-8)^2=25
Click here to see answer by asuar010(324)

Question 266175: solve for x.
x^2 + 12x + 4 = 0
Click here to see answer by jim_thompson5910(28717)

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, 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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