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

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

Question 279708: Find the LCM, x^2y,xy^3
Click here to see answer by stanbon(57347)

Question 279716: hi there this is my first time i got on to the site and i just like a break down on how (a+b)2 = a2 + 2ab + b2 . it would be a big help if you could tell why it is not a2 + b2 ps a2 means a to the power 2 thank you
Click here to see answer by Alan3354(30993)

Question 279752: Hi, I need help with this, if you can I appreciate it.
Thank you
The coefficient of the third-degree term of is______________.
Click here to see answer by jim_thompson5910(28595)

Question 279883: Factor completely

Thank you!

Click here to see answer by Edwin McCravy(8909)

Question 280027: How do you write a polynomial in standard form using the given zeros 2, 5, and 4
Click here to see answer by nabla(475)

Question 279986: for what vaules are the rational expression undefined? m to the 2nd power minus 2m over 3m plus 6
Click here to see answer by nabla(475)

Question 280096: Here is a question from Algebra 1 "One city contains 22,000 elevators. If 2,000 more are for freight than for passengers, how many freight elevators are there?"
Click here to see answer by richwmiller(9135)

Question 280119: 1. Solve. Try factoring first. If factoring is not possible or is difficult, use the quadratic formula.
2x2 + 8x = - 1
2.Solve for the specified variable. S = a/1 - r
Click here to see answer by Alan3354(30993)

Question 280143: how do i use vertical format to add (3x^2-4x+1)+(-x^2+x-9)
Click here to see answer by JBarnum(2044)

Question 280193: w^2+3w-28=0
What is the correct answer?
The solution(s) is/are w=?
(type an integer or simplified fracion. Use comma to separate answers as needed. Type each solution only once.
or
There is no solution

Click here to see answer by richwmiller(9135)

Question 280189: 150r^11/-5r^7
The quotient is:
(simplify your answer)
Click here to see answer by JBarnum(2044)

Question 280210: factor completely 27x^3+1

Click here to see answer by jim_thompson5910(28595)

Question 280215: Factor completely sum of cubes
27x^3+1
Click here to see answer by jim_thompson5910(28595)

Question 280207: how do you find the gcf of monomials..?
Click here to see answer by JBarnum(2044)

Question 280244: You have 64 yards of fencing to enclose a rectangular region. Find the dimensions of the rectangle that maximize the enclosed area.
i tried 2x+2y=64 so far but when i used subsitution the variables cancel out.
Click here to see answer by rfer(12660)

Question 280290: Factor the polynomial 9x^2 + 4y^2
Click here to see answer by user_dude2008(1861)

Question 280286: I need help figuring this out.
If the diameter of a circle is 13x10^-12 meters, then what is its radius?
Click here to see answer by user_dude2008(1861)

Question 280139: (-1/7x^7) (-1/5x) the answer is?
Click here to see answer by user_dude2008(1861)

Question 280284: I am having problems trying to figure this one out, can you please help me.
A red ball and a green ball are simultaneously tossed into the air. The red ball is given an initial velocity of 96 feet per second, and its height t seconds after it is tossed is -16t^2+ 96t feet. The green ball is given an initial velocity of 80 feet per second, and its height t seconds after it is tossed is -16t^2 + 80t feet.
A) find a polynomial D(t) that represents the difference in the heights of the two balls.
b) How much higher is the red ball 2 seconds after the balls are tossed?
c) In reality, when does the difference in the heights stop increasing?
Click here to see answer by Inkyvoyd(17)

Question 280279: You fire a rifle at an angle of 45 degrees. Thus the initial horizontal and vertical velocities of your bullet are the same. Suppose they each equal 240 feet per second. Again ignore air resistance. Assume you are shooting from ground level (height 0). Your bullet will hit the ground ____ feet from your current position.
Click here to see answer by nerdybill(6958)

Question 280338: Sky divers. Bob and Betty simultaneously jump from
two airplanes at different altitudes. Bob’s altitude
t seconds after leaving his plane is -16t^2 + 6600 feet.
Betty’s altitude t seconds after leaving her plane is
-16t^2 + 7400 feet. Write a polynomial that represents the
difference between their altitudes t seconds after leaving
the planes. What is the difference between their altitudes
3 seconds after leaving the planes?

Click here to see answer by Alan3354(30993)

Question 280351: Simplify:
(3^2)^-4=

Click here to see answer by checkley77(12569)

Question 280353: (-10x+11)+(4x^2+1/2x-14)
simplify your answer. Use integers or fractions for any numbers in the expression.
Click here to see answer by checkley77(12569)

Question 280353: (-10x+11)+(4x^2+1/2x-14)
simplify your answer. Use integers or fractions for any numbers in the expression.
Click here to see answer by jsmallt9(3296)

Question 280352: The mass of Mars is about 6.421*10^20 metric tons. The mass of the sun is about 1.998*10^27 metric tons. About how many times the mass of Mars is the mass of the sun? Give your answer in scientific notation.
The mass of the sun is about ____ times the mass of mars.
(round to the nearest thousandth as needed. Use scientific notation. Use the multiplication symbol in the math palette as needed.
Click here to see answer by checkley77(12569)

Question 280354: (-9a+8b-c)-(-3b-7c-6d)
Simplify your answer. Use integers or fractions for any numbers in the equation.
Click here to see answer by stanbon(57347)

Question 280350: Subtract:
(0.05x^3-0.05x^2+0.03x) - (0.02x^3+0.01x^2-7)=
Simplify answer. Use integers or decimals for any numbers in the expression.
Click here to see answer by stanbon(57347)

Question 280349: 2/3x^2+10x+8 + 1/3x^2+7x+4
Click here to see answer by stanbon(57347)

Question 280398: Jack usually mows his lawn in 3 hours. Jill can mow the same yard in 4 hours. How much time would it take for them to mow the yard together?
Click here to see answer by richwmiller(9135)

Question 280409: Factor each polynomial.If the polynomial cannot be factored,write prime.
1.15r+20rs
2.7yz+3x
Click here to see answer by checkley77(12569)

Question 280314: if the side of an equilateral triangle are given by (2a-b-3),(a-b+1) and (2a-2b-1),then the perimeter (in cms) of the triangle is
a. 6
b. 9
c. 12
d. 15
Click here to see answer by Alan3354(30993)

Question 280378: one solution of x^3-5x^2+5x-1=0 is 1. find the other two solutions.
if anyone can help me with that problem i would really appreciate them. thank you all again:)
Click here to see answer by checkley77(12569)

Question 280348: 6-1/z+1=-6/z-1
Click here to see answer by checkley77(12569)

Question 280465: Multiply....(x - 3)(7x^2 + x + 8)
Click here to see answer by vleith(2825)

Question 280468: (a+b+c)(a-b-c)
Click here to see answer by vleith(2825)

Question 280463: information is given about a polynomial f(x) whose coefficients are real numbers.find the remaining zeros of f.
degree 4; zeros: i, 3+i
Click here to see answer by Alan3354(30993)

Question 280486: . Find the LCD for the given rational expressions, and convert each rational expression into an equivalent rational expression with the LCD as the denominator.
4/(x-y),5x/(2y-2x)

Click here to see answer by stanbon(57347)

Question 280473: In figuring out a Polynomial Long division problem. How do you know when the number is a + or a -, and how do you figure out when you need to add or subtract.
12x^3-14x^2+11x-20 / 3x-5
Click here to see answer by Theo(3464)

Question 280534: Determine the leading term, leading coefficient, and the degree of polynomial..
5x^2 + 3x - 3
I think I have the answer but want to double check.
Click here to see answer by Theo(3464)

Question 280528: (12x^4 - 9xz + 6xz^2) - (3x^4 + 9xz + 4xz^2)
Click here to see answer by richwmiller(9135)

Question 280535: A rancher builds a silo inside his corral. The rectangular corral measures 23m by 18m and silo's base is circular with diameter of 2x meters. Find the polynomial for remaining area of corral (in sq. meters) after silo is built....I think this may be a trick problem, but need help with it
Click here to see answer by richwmiller(9135)

Question 280527: Evaluate the polynomial...
yz + xy - z for x=2, y=4, and z=1
Click here to see answer by richwmiller(9135)

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