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

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

Question 20729: Please help! How do I solve this rational equation?
2/x+5 - 3/x+3=1/x

Click here to see answer by kapilsinghi(68)

Question 20703: Factor Completely (difference of squares)
x^8-1
Click here to see answer by kapilsinghi(68)

Question 21075: x^2+3x-40=0
How would you solve this equation?
Click here to see answer by kapilsinghi(68)

Question 21075: x^2+3x-40=0
How would you solve this equation?
Click here to see answer by elima(1433)

Question 21074: x^2+3x-40=0
How would you solve this equation?
Click here to see answer by kapilsinghi(68)

Question 21079: How would you facor this by grouping?
xy+11x-2y-22
Click here to see answer by algebrapro18(249)

Question 21086: How would you solve this equation?
x^2-49=48x
Click here to see answer by algebrapro18(249)

Question 21084: Im not to sure about factoring, so could you help me out with these 2 problems?
FACTOR THE POLYNOMIAL COMPLETELY. IF THE POLONOMIAL CANNOT BE FACTORED, WRITE PRIME
x^2+2x-24

2x^2-6xy-8y2
Thanks!
Click here to see answer by Earlsdon(6294)

Question 21195: how many quarts of a 20% saline solution must be added to 8 quarts of a 15% solution to create a solution that is 17% saline
Click here to see answer by Paul(988)

Question 21155: The expression 5a+3b=46 for what values of a and b
Click here to see answer by lola_fish99(13)

Question 21155: The expression 5a+3b=46 for what values of a and b
Click here to see answer by Alwayscheerful(414)

Question 21257: How would I simplify this problem?
-(3-x)=
i keep coming up with different answers that don't reflect
what's in the book. thanks
Click here to see answer by GuessWho(10)

Question 21256: How would I simplify this problem?
(a-b)(a+b)=
i keep coming up with different answers that don't reflect
what's in the book. thanks
Click here to see answer by GuessWho(10)

Question 21253: how would i simplify this polynomial
x^3 . x^-6=
Thanks
Click here to see answer by elima(1433)

Question 21267: if i have this equation:
y=18x+0

how do i find y and x?
Click here to see answer by elima(1433)

Question 21385: I forgot to give an e-mail address for the question: How would you factor this: 25^2 - 36

My other question is: how do you solve this equation: (x-7)(x+8)=0
Click here to see answer by Earlsdon(6294)

Question 21384: I forgot to give an e-mail address for the question: How would you factor this: 25^2 - 36

My other question is: how do you solve this equation: (x-7)(x+8)=0
Click here to see answer by Earlsdon(6294)

Question 21369: the question is: Factor the polynomial completely. If the polynomail cannot be factored, write PRIME.
z^2 - 49 Can anyone help?
Click here to see answer by venugopalramana(3286)

Question 21395: Hello, need help I have no idea how to do this.
using the FOIL methody simplify
x^2 + x - 20
______________ =
x^2 - 9x + 20
i think you divide the bottom into the top and scratch out the similar variables. thanks
Click here to see answer by queenofit(120)

Question 21454: I am working on Factoring Polynomial completely - I think I figured this one out, but would appreciate someone looking over to let me know if I did this correctly.
4m (exponent of 2) - 9m - 9
my solution: 2(2m*(3) 2(2m*(3) Is this correct? Thank you very much for your help.
Click here to see answer by Earlsdon(6294)

Question 21453: I just submitted this and forgot to give my email address:
I am working Factoring polynominals completely. I can't figure out a solution for this one.
2x (exponent of 3) -10x (exponent of 2) + 12x
Please help - thanks so much!!
Click here to see answer by Earlsdon(6294)

Question 21440: This is confusing please help my finals is coming. Simplify 25t^2-64s^2/st/5/s-8/t thank u
Click here to see answer by bonster(299)

Question 21586: Could you please help me with this problem
Evaluate:
Click here to see answer by Earlsdon(6294)

Question 21584: Could you please help me with this problem:
Evaluate:
Click here to see answer by rahman(247)

Question 21659: A sqare has a side of length 1.732x + 1.414 meters. Find a polynomial that represents the area.
1.732x +1.414=
I got 3.146
Is this the right way to do this problem?
Click here to see answer by longjonsilver(2297)

Question 21658: It has asked me to Perform the indicated operations. Can someone help me with this?
66. (a � 3)(a + 4)(a � 5)
Thank you
Click here to see answer by longjonsilver(2297)

Question 21662: Can you help me with this? It's driving me crazy!
Simplify: 21n-6/7n-4
The "-6" and "-4" are negative exponents.
Thank you for your help!
Click here to see answer by longjonsilver(2297)

Question 21702: x cubed - 36x factor this please
Click here to see answer by longjonsilver(2297)

Question 21699: Solve the polynomial equation by factoring and then using the zero product principle. 3x to the 4th power minus 75x to the second power = 0.
Click here to see answer by Earlsdon(6294)

Question 21739: Factor each polynomial as completely as possible...If a polynomial cannot be factored write "Prime"
y^2+4y-45
Click here to see answer by wuwei96815(245)

Question 21743: Factor each polynomial as completely as possible...If a polynomial cannot be factored write "Prime"
4x^2-2x-30
Click here to see answer by queenofit(120)

Question 21799: Hi,
Can anyone help with this? I believe I have to divide but am not positive:
If a spacecraft is traveling 3x10(20) miles per hour, how long does it take the spacecraft to travel 9.3x10(23) miles? Express answer in Scientific Notation.
Please note that the (20) and (23) are exponents.
Thanks for your help!!
Click here to see answer by Earlsdon(6294)

Question 21674: (x/(x^2-100))(9x(x+10)/x+3))=
Click here to see answer by algebrapro18(249)

Question 21912: 5/a - 7/2b what is the lcd of this expression?

Click here to see answer by queenofit(120)

Question 21920: Find b so that (x-3) is a factor of f(x)=x^3+bx^2-7x+12.
Should x-3 replace the x's in the problem and then solve for b? I've been trying that, but end up with a huge mess for a answer! Hope you can help. Thanx.
Click here to see answer by venugopalramana(3286)

Question 21916: factor completely over the integers:
121-64x^2-36y^2+96xy
I've tried pairing the integers in different ways and still can't solve this.
Please help.
Thank you.
Click here to see answer by AnlytcPhil(1806)

Question 21889: For the polynomial function f(x) = x^4 - x^3 - 2x^2 - 4x - 24
Find all real zeroes (x-intercepts)
Divide all real zeroes out using synthetic division
solve the quadratic equation using the quadratic formula (which should give two complex zeroes)
give complete factorization of f(x)
(I know this seems long - but I am so completely lost - this one question will explain about a half 'o dozen problems I am having with my homework)
Click here to see answer by venugopalramana(3286)

Question 21875: how do i solve
2x^2+4x
i have to factor out the GCF from each polynomial but i have not a clue what i am doing

Click here to see answer by elima(1433)

Question 21995: all our teacher gave us is a worksheet and it says "Sove each equation. Check your solution." here is one of many problems: xsquared + 10x + 9 = 0. please and thank you.
Click here to see answer by Alwayscheerful(414)

Question 22025: 4d - (5c + 4d)
Click here to see answer by Alwayscheerful(414)

Question 22024: 4d - (5c + 4d)
Click here to see answer by Alwayscheerful(414)

Question 22014: How do I factor 16t^2 -180+464?
Click here to see answer by venugopalramana(3286)

Question 22058: hello, simplify,
16x^7y^2 =
____________
2^x2
i came up with 8x^5y^2
could you please let me know if this is correct if not show me
the correct format. thanks so much
Click here to see answer by venugopalramana(3286)

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