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

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

Question 332267: Please help me with this equation, my book does not cover this fully and I am having a hard time understanding. I need to factor the perfect square expression. The problem is x^2 + 12xy + 36y^2
Click here to see answer by jim_thompson5910(28598)

Question 332277: Hello,
A room has an area of 160 sq ft. One dimension is 6 feet more than the other. Find the dimensions of the room
Solve the problem.
Thank you!
Click here to see answer by jim_thompson5910(28598)

Question 332294: what was done to 15x-32=6 to get 15x+2=40?
Click here to see answer by jim_thompson5910(28598)

Question 332068: Please help me write the equation of the line parallel to 2x-6y=-1 and containing the x intercept of 4x-3y=12.

please and thank you
Click here to see answer by ankor@dixie-net.com(15660)

Question 332372: Use laws of exponents to simplify
11 2
_ _
(10^14) 5

Click here to see answer by Alan3354(30993)

Question 332383: Hi there!
I've been having trouble solving this problem and I've tried but couldn't figure it out.
2x^3 - 7x^2 - 128x + 448 = 0
Thanks!
Click here to see answer by scott8148(6628)

Question 332384: How do you find 71 divided by 39,902?
How do you find 82 divided by 22,960?
Click here to see answer by rfer(12670)

Question 332382: Hi,
I'm having trouble solving this:
Factor the polynomial completely.
54a^3b - 16b^4
Thanks.
Click here to see answer by Alan3354(30993)

Question 332459: FACTOR Y TO THE POWER OF 4 +6Y TO THe POWER OF 2 + 25
Click here to see answer by mananth(12270)

Question 332480: 3b multiplied by (-6b^4) =???
Click here to see answer by edjones(7569)

Question 332482: ( -2x)^4( -2x)^5 =??? :) thank you so much for your help!!!
Click here to see answer by mananth(12270)

Question 332439: a rectangular aea is to enclosed by a fence then divided down the middle by another piece of fence then divided by another piece of fence .if 3600 metres of fence is available ,find the maximum area that can be enclosed
Click here to see answer by ankor@dixie-net.com(15660)

Question 332608: What are the possible rational roots for 2x^4+11x^3+x^2-10x-4?
Click here to see answer by solver91311(16897)

Question 332599: 35x^3 y^3/7x^2 y^4 how do I simplify this please help.
Click here to see answer by checkley77(12569)

Question 332598: (4y+2)(3y^2 -5y+8) = thank you
Click here to see answer by checkley77(12569)

Question 332597: (4x^4 y^2 z)^3(yz^4)^5 = thank you lots
Click here to see answer by checkley77(12569)

Question 332621: Factor completely if possible
(y-5)^2-36q^2
Thanks so much for you help
Click here to see answer by nerdybill(6963)

Question 332636: how do you figure -(-6m+15)
Click here to see answer by fractalier(2101)

Question 332644: The area of a rectangle is 21 square meters. Find the length and width of the rectangle if its length is 4 meters greater than its width. Use an equation and the formula for the Area of a rectangle = (width)(length).
Click here to see answer by benazir.sj@gmail.com(109)

Question 332604: p^2-1/(p+1)^2 simplify by removing factors by 1
Click here to see answer by benazir.sj@gmail.com(109)

Question 332669: I need help finding th LCM of .
Click here to see answer by mananth(12270)

Question 332669: I need help finding th LCM of .
Click here to see answer by ankor@dixie-net.com(15660)

Question 332705: (7x^5 + 2x^4 + 4x^3 - 8x + 5) - ( x^5 - 2x^3 - 6) = ??? ty for your help
Click here to see answer by unlockmath(1603)

Question 332703: (2k-5)(3k+2) = ty very much
Click here to see answer by unlockmath(1603)

Question 332706: I need to get this problem solved. w-^4/w6

Click here to see answer by mananth(12270)

Question 332706: I need to get this problem solved. w-^4/w6

Click here to see answer by benazir.sj@gmail.com(109)

Question 332702: -5x^2(2x^3+6x-4)= :) ty
Click here to see answer by benazir.sj@gmail.com(109)

Question 332704: -4x^3(x^2-9x)= ty soooo much
Click here to see answer by benazir.sj@gmail.com(109)

Question 332701: (7x-3y)(x-2y) = ty :)
Click here to see answer by benazir.sj@gmail.com(109)

Question 332682: how do you solve 5z/25z+5 X 30z+6/5?
Click here to see answer by benazir.sj@gmail.com(109)

Question 332724: (four-fifths x^3 +2x^2 - three-eights)-( two-fifths x^3 + 3x - five-eighths) = thank you very much for help
Click here to see answer by mananth(12270)

Question 332720: (3r+4s)^2 = thank you for help!!!
Click here to see answer by AAfter Search(61)

Question 332673: For this question I need to find numbers for which rational expression is undefined. I believe the answer is 0 but am not sure.
5/x-5 (this is in fraction form)
Click here to see answer by ankor@dixie-net.com(15660)

Question 332818: graph the following function
f(x) = abs value of x divided by x
Click here to see answer by vleith(2825)

Question 332818: graph the following function
f(x) = abs value of x divided by x
Click here to see answer by solver91311(16897)

Question 332816: define the function F on [-7,-1] by F(x)=x^2+8
Determine whether F is one to one.

Find the range of F
Click here to see answer by Edwin McCravy(8911)

Question 332820: one hundred feet of fencing is to be used to enclose a rectangular garden that abuts to a barn. No fencing is needed along the barn. What is the largest possible area that can be enclosed?
Click here to see answer by jrfrunner(365)

Question 332533: Simplify (Show work):
x-1/x^2+1 * x^4-1/(x-1)^2 * x^2-1/x^4-2x^2+1
x-1/x^2+1 * x^4-1/(x-1)^2 * x^2-1/x^4-2x^2+1

(x-1)/(x2+1)*(x4-1)/[(x-1)2]*(x2-1)/(x4-2x2+1)
(x-1)(x4-1)(x2-1)/(x2+1)(x-1)(x-1)(x2+1)(x2+1)
(x-1)(x4-1)(x2-1)/(x2+1)(x-1)(x-1)(x2+1)(x2+1)
(x4-1)(x2-1)/(x2+1)(x-1)(x2+1)(x2+1)
Not sure if this is right and where to go from here, please help!
Click here to see answer by romenoodle(1)

Question 333056: how do i factor trinomials?
ex:
Xsquared+4X+3
i need step bt step help , thanks
Click here to see answer by benazir.sj@gmail.com(109)

Question 333056: how do i factor trinomials?
ex:
Xsquared+4X+3
i need step bt step help , thanks
Click here to see answer by solver91311(16897)

Question 333128: An artist sells earrings from a booth at a fair. Rent for the booth is $250. The artist makes $6 from each pair of earrings sold. The profit in dollars, P, can be found by using the equation P=6n-250. How many pairs of earrings must the artist sell to earn a profit of $500?
Click here to see answer by solver91311(16897)

Question 333308: Evaluate the polynomial x2- 4y2 - xy for x = 3 and y = -4
Solve by factoring and using the principle of zero products.
2k2 = -30k - 100
Click here to see answer by benazir.sj@gmail.com(109)

Question 333380: Rationize:
14-√x / √x

and
√x / 14-√x
I don't understand and need help. This is due today and I have been trying for a week. It is probably something very simple but I think my brain is fried.
Thanks in advance for the help.
Click here to see answer by solver91311(16897)

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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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