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

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

Question 22772: what is the numerator?
4a^2/a^2-v^2+a+b/a-b-a-b/a+b
Click here to see answer by queenofit(120)

Question 22771: what is the least common denominator?
1/ab^2 and a/5
Click here to see answer by queenofit(120)

Question 22817: how would I simplify this so i can do the remainder of my homework
(2x^4 + 5x^3 + 4) + (3x^3 - 2x + 5)
I think I combine like terms somehow.
thanks

Click here to see answer by queenofit(120)

Question 22814: please show me how to factor the following
X^2 - 3x -28
thanks
Click here to see answer by queenofit(120)

Question 22624: a2+32a+60
Click here to see answer by rapaljer(4667)

Question 22825: hello there,
trying to check these questions. please help.
n^2 + 2n + 2 = (n-1)(n+3)
2b^2 -2 = 2(b-1)
2(p-q)^2 = 4p^2-q^2

Click here to see answer by stanbon(57967)

Question 22646: Fully factor the third-order polynomial H(s) if it is known that one of the factors is (s+2).
H(s)= 2s^3-7s^2-43s-42
I need help....
Click here to see answer by venugopalramana(3286)

Question 22609: how do i factor by using the trial and error method for this problem? Help
15x^2+13x+2
Click here to see answer by venugopalramana(3286)

Question 22872: Help!!!!
Completely factor the polynomial X^3+2X^2-120X.
Thanks very much
Click here to see answer by Earlsdon(6294)

Question 22945: x(3x+2)=(x+2)^2

Click here to see answer by rapaljer(4667)

Question 22932: 56 x to the third power plus 64 x to the second power take away 20 x divided 8 x to the second power take away 2 x take away 15 times 2 x to the second power plus 5 x take away 21 divided 63 x to the third power plus 129 x to the second power take away 42
Click here to see answer by rapaljer(4667)

Question 22923: What is a shortcut of finding a trinomial squared...For Example like:
(x^2-3x+5)^2
Click here to see answer by rapaljer(4667)

Question 22955: Solve by factoring--4xcubed - 28xsquared + 49x > 0
Click here to see answer by longjonsilver(2297)

Question 22981: x^2+4*x/x^2+4*.(x*+2)^2/x^2

Click here to see answer by stanbon!(97)

Question 22979: [(x^2+4x)/(x^2+4)]*[(x+2)^2/x^2]

Click here to see answer by stanbon!(97)

Question 22737: 3^4-(6-7)^4 /2^3-2^4
Click here to see answer by stanbon!(97)

Question 22626: M^2-18M+4
Click here to see answer by stanbon!(97)

Question 22996: I REALLY need help for the following problem. 1.5m^6(-2m^2)^4. The solution to this is hidden in a multiple choice problem and none of the answers I've calculated ad up to the possible answers I need to pick from. Help would be appreciated and thank you in advance!
Click here to see answer by rapaljer(4667)

Question 23015: Please help.
I need to factor the following: 6x^5 + 4x^3 - 8x.
I got as far as 2x(3x^4 + 2x^2 - 4). I'm not sure this is right. Is this problem a prime polynomial? Thanks.
Click here to see answer by rapaljer(4667)

Question 23009: I need help because i am doing this w/o my book. Please and thank you. the question says Find the zero's of the polynomial function. f(x)=2(x-5)(x-6)^3
I have two more questions and that is it.The next one says use the correct compound interest formula A=P[1+r/n]^nt or A=Pe^rt to solve I don't know what they mean can u tell me please. Using that it says Find the accumulated value of an investment of $10,000 at 4% compounded annually for 17yrs.
Click here to see answer by rapaljer(4667)

Question 23042: Two ships leave port, one sailing east and the other sailing south. Some time later they are 17 mi apart, with the eastbound ship 7 mi farther from port than the souhbound ship. How far is each from port.
This is what i tried:
n squared + (n+2)squared=17 squared
Click here to see answer by rapaljer(4667)

Question 22374: This is factoring polynomials.
How do i factor 9x^2+24xy-9y^2 I haven't a clue. Can someone help me with this?
Click here to see answer by venugopalramana(3286)

Question 22375: I am to factor 3y^2+10y+7, the trinomial using the ac method. Can someone help me answer this question.
Click here to see answer by AnlytcPhil(1278)

Question 22505: 3^4-(6-7)^4 / 2^3-2^4
Click here to see answer by AnlytcPhil(1278)

Question 22558: Divide (x^2-2x-15)/(2x+3)
Click here to see answer by AnlytcPhil(1278)

Question 22476: polynomial graphing
f(x) = 2x^3-x^2-8x+4

Please help
Click here to see answer by rapaljer(4667)

Question 22323: Simplify the rational expression.
-6x
x-x2

Click here to see answer by rapaljer(4667)

Question 22444: what is (3a^2)^2 x 4a^3b
Click here to see answer by rapaljer(4667)

Question 22180: Hello,
Simplify
(-3x^2y^3)= -27x^6y^3 (my answer)
2(x^-3y^2)^2 = (2x^-3.2^y)2 (my answer)
could you please tell me if i answered these correctly.
Thanks
Click here to see answer by rapaljer(4667)

Question 22130: Graph the polynomial function.
f(x)=-3x(x+2)to the second power
Click here to see answer by rapaljer(4667)

Question 21803: Hi--can anyone tell me if i did this right?
(t^-8)^2/(t^-5)^9
i got:
1/t^29
Thanks in advance for you hlep.
Click here to see answer by rapaljer(4667)

Question 21802: Hello,
Can anyone tell me if this is correct?
The floor plan of a house is rectangular. The house's width is x-5 yards and it's length is 2x + 2 yards. Write a binomial that represents the perimeter of the house.
I came up with :
2(2x+2)+ 2(x-5)
4x+4+2x-10
6x-6
Thanks for your help!

Click here to see answer by rapaljer(4667)

Question 21815: Need assistance please with applications using rational equatins and proportions. thanks for your help
Find all numbers for which the rational expression is not defined.
3/x
4/x-6
x+5/x^2-36
x2-3x+2/x^2+x-30
Click here to see answer by rapaljer(4667)

Question 22057: hello, simplify
(x^-6 . x^-4)=^2
I came up with the answer (x^-6 + 4 )^2
is this correct? if not could you show me the correct answer. thanks
Click here to see answer by rapaljer(4667)

Question 22178: -3x^3 + 3x^2+ 3x
Click here to see answer by rapaljer(4667)

Question 22128: simplify and write in standard form

(a-4)(6a(squared)+10a-3)
Click here to see answer by rapaljer(4667)

Question 21687: i am told to simplify this (-3x^2y)^3= but i don't think it's possible.
is this a trick question? thanks
Click here to see answer by rapaljer(4667)

Question 22109: Factor Completely:
16y^2-72x+81
Click here to see answer by rapaljer(4667)

Question 23175: How do you know when to multiply the polynomial or add the polynomial?

Thank You

please return the message as soon as possible
Click here to see answer by stanbon(57967)

Question 22275: (X^2-x-12)/(x-4)
Click here to see answer by stanbon(57967)

Question 23185: How do I solve these problems?
1). xy(4x + 7y) - x(squared)(y + 3)
2). 2/3x(12y - 6x) + 1/5x(squared (10-20xy)

Click here to see answer by stanbon(57967)

Question 23184: I have trouble with computing polynomials ie, ab(4c-3c) + cd(7a-2b). Can you help me?

Click here to see answer by stanbon(57967)

Question 21998: It would be nice if someone could show me how to solve this problem.
Thanks in advance.
Find a polynomial equation that has the zeros x= +1,-1 and x= +2,-2 and passes through the point (3,5). Some blanks may contain zeros.
f(x)=(___)X^4+(____)X^3-(____)X^2+(____)X+(____)
Click here to see answer by stanbon(57967)

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, 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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, 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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, 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