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

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

Question 261458: Please help me with this question. 1-y/4y+4 times y+1/y+4
Click here to see answer by richwmiller(9135)

Question 261458: Please help me with this question. 1-y/4y+4 times y+1/y+4
Click here to see answer by palanisamy(496)

Question 261483: 3^w • 3^5-w • 3
i got 27^6
but i need a definite answer
Click here to see answer by richwmiller(9135)

Question 261587: How do you solve x cubed minus 3x squared plus 2x minus 8 divided by x squared plus two

Click here to see answer by richwmiller(9135)

Question 261636: how do i find the produxt or quotient of 2k+8 over 6 divided by 3k+12 over 2
Click here to see answer by butterfliiizzz(18)

Question 261636: how do i find the produxt or quotient of 2k+8 over 6 divided by 3k+12 over 2
Click here to see answer by unlockmath(1599)

Question 261657: need to factor out x^2-3. thanks
Click here to see answer by unlockmath(1599)

Question 261674: find the greatest common factor of 20a^3b, 32a^2b^2, and 44ab^3
Click here to see answer by CharlesG2(828)

Question 261713: A market research company finds that at a price of p=$20., they would sell x=42 tiles each month. If they lower the price to p=$10., then more people would purchase the tile, and they can expect to sell x=52 tiles in a months's time. Find the equation of the line for the demand equation. Write your answer in the form p=mx+b. Hint: write an equation using two points in the form (x,p).
My biggest problem is I am not sure about the demand equation, I am not real clear on what I am suppose to be figuring out in this problem. I have several other problems which depend on my having this base correct. I am totally blank and have read everything I have on this and I must be over looking or thinking this out. Please help me.
Click here to see answer by Theo(3458)

Question 261678: Factor by grouping 6x^3-15x^2+14x-35
Click here to see answer by jim_thompson5910(28476)

Question 261851: How do you multiply a polynomial by a polynomial. (x+3)(x+2) i tried it but i still dont get it help. thank you.(poco ingles)
Click here to see answer by solver91311(16868)

Question 261869: Simplify. (g+5)+(2g+7)
Click here to see answer by Stitch(352)

Question 261853: 9x to the third power plus one

Click here to see answer by richwmiller(9135)

Question 261848: Factor.Check by multiplying
4.2x^4+5.4x^3-2.4x^2+3x
type the greatest monomial factor and polynomial factor with coefficients.

Click here to see answer by richwmiller(9135)

Question 261808: how do you figure out how to do (-4x)^3(-4x)^4
Click here to see answer by checkley77(12569)

Question 261924: how do i factor a polynomial equation such as 3x+6
Click here to see answer by dabanfield(803)

Question 262081: Factor and simplify:
(2xy+3wxy-8x-12wx) / (4xy^2-64x)
Click here to see answer by unlockmath(1599)

Question 262171: solve v^2+8v+15=0
Click here to see answer by nerdybill(6948)

Question 262173: The product of the page numbers on two facing pages of a book is 156. Find the page numbers.
Click here to see answer by texttutoring(324)

Question 262173: The product of the page numbers on two facing pages of a book is 156. Find the page numbers.
Click here to see answer by richwmiller(9135)

Question 262170: solve using the principle of zero. (9a+7)(2a-6)=0
Click here to see answer by richwmiller(9135)

Question 262172: A rectangular table is six times as long a it is wide. If the area is 96 ft^2, find the length and the width of the table.
Click here to see answer by kelsdf(2)

Question 262048: Help please! Find the length of side of a triangle if b=24 and c=26 using this formula. a^2+b^2=c^2
Click here to see answer by ankor@dixie-net.com(15624)

Question 262268: Can someone help with this problem please?
Multiply

(9x + 7)(3x^2 + 2x + 1)
(Simplify your answer.)
Thank you to anyone who can help with this problem.
Click here to see answer by Stitch(352)

Question 262422: sqrt 5x + 4 + 13
Click here to see answer by stanbon(57219)

Question 262427: sqrt3y + sqrt1 = 4
the square root sign is above 3y + 1
Click here to see answer by stanbon(57219)

Question 262550: x^4+3x^2+4
factor
Click here to see answer by drk(1908)

Question 262616: 1.SIMPLIFY AND WRITE WITH POSITIVE EXPONENTS 9X(X^-3)/18X^15
I DID THIS AND NOW IM STUCK:9X(1/X^-3) THEN I GOT 9X/18X^15X^-3 = 9X/18X^12 = X/2X^12 NOW IM STUCK ...HELP?
2.WRITE WITHOUT NEGATIVE EXPONENTS=(3X^-4Y^2)^-3 = (1/3X^-4Y^2)^-3 = 3*3*3 X^-4+3 Y^2+3 = 1/27X^-1Y^5 I NEED HELP IM ALSO STUCK.
Click here to see answer by stanbon(57219)

Question 262615: Area of a sail. The area in square meters for a triangular
sail is given by A(x)= x^2+5x+6.
a) Find A(5).
b) If the height of the sail is x +3 meters, then what is
the length of the base of the sail?

Click here to see answer by dabanfield(803)

Question 262586: Please help me. It's multiplying polynomials:
.
Click here to see answer by edjones(7569)

Question 262781: a little help please..
factor by grouping

5(x+y) + 9(x+y)
Click here to see answer by drk(1908)

Question 262783: How can I factor by grouping?
x3 + x2 + 2x + 2
Click here to see answer by butterfliiizzz(18)

Question 262782: How do I factor by grouping?
8x3 - 12x2 + 6x - 9
Click here to see answer by drk(1908)

Question 262782: How do I factor by grouping?
8x3 - 12x2 + 6x - 9
Click here to see answer by butterfliiizzz(18)

Question 262784: Please help me on factoring by grouping.
2x3 - 8x2 - 9x + 36
Click here to see answer by nerdybill(6948)

Question 262784: Please help me on factoring by grouping.
2x3 - 8x2 - 9x + 36
Click here to see answer by drk(1908)

Question 262780: please help
it says factor by grouping
3x + 3y + ax + ay
Click here to see answer by drk(1908)

Question 262821: Consider any integer x. The next consecutive integer can be represented by the binomial (x+1).
a. write a polynomial for the sum of any two consecutive integers
b. explain how you can be sure that the sum of any two consecutive integers is always odd. Use the polynomial form part (a) in your explanation
Click here to see answer by drk(1908)

Question 262846: I do not know where to start.
A red ball and a green ball are simultaneously tossed into the air.
Find a polynomial D(t) that represents the difference in the heights of the two balls. 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 80feet per second, and its height t second, and its height t seconds after it is tossed is -16t^ + 80t feet. How much higher is the red ball 2 seconds after the balls are tossed? In reality, when does the difference in the heights stop increasing?
Click here to see answer by ankor@dixie-net.com(15624)

Question 262895: My son is trying to learn how to factor when either square is a square of a polynomial. Such as this problem: 9a^2-(2a-5)^2. I know the answer from the teacher book is 5(a-1)(a+5)^2, but I can't explain to him how to work it. Any help is appreciated.
Phebe Little, for my son Micah, who is in Algebra I
Click here to see answer by checkley77(12569)

Question 262899: How do I factor when either square is a square of a polynomial?
Such as in this problem:
49a^2-(5a-4b)^2
Any help is appriciated.
Micah
Click here to see answer by nerdybill(6948)

Question 262902: 3X to the fourth power =300.
PLease help me figure this problem..
Thank you soooooooo much, I dont even know where to begin
Click here to see answer by drk(1908)

Question 262904: Pseudoephedrine hydrochloride is an allergy medication. The polynomial L(t) = 0.03t^4 + 0.4t^3 – 7.3t^2 + 23.1t, where 0 <= t <= 5, models the level of pseudoephedrine hydrochloride, in milligrams, in the bloodstream of a patient t hours after 30 milligrams of the medicine have been taken.
At what times, to the nearest minute, does the level of pseudoephedrine hydrochloride in the bloodstream reach 12 milligrams?
Click here to see answer by drk(1908)

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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, 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, 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