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

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Algebra: Polynomials, rational expressions and equations

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Question 8886: I've been stuck on this problem for a long time....
How can u factor:
7x2y2+147xy2-504y2=
(the 2 means to the 2nd power)
Thanks!!
Click here to see answer by rapaljer(3620)

Question 9208: x/4 + 3x/5 = 17
Click here to see answer by rapaljer(3620)

Question 9212: x - 5x/6 = -2/3
Click here to see answer by lucky83(12)

Question 9228: Let the roots of the equation 3x2 -(p-4)x-(2p+1)=0 be alpha and beta. find the quadratic equation whose roots are apha+2 and beta+2
Click here to see answer by khwang(438)

Question 9323: Can someone check to see if my answer is correct?
Factor: 2x^2 - 98
I belive the answer is 2(x+7)(x-7)
Thanks
Click here to see answer by rapaljer(3620)

Question 9337: Here is one that I am stuck on. Actually I have two of them. I might as well give both.
1. Choose the correct factored form for x^ - 12x + 35
I am stuck. Either it is (x + 7)(x + 5) or it is (x - 7)(x - 5)
2. Choose the correct solutions for the quadratic equation x^2 + 3x - 10 + 0.
I believe the answer to this one is (-5, 2)
Thanks
Click here to see answer by lucky83(12)

Question 9339: Here is a word problem....I always have problems with word problems.

The width of a rectangle is 8 feet less than the length. If the area is 20 square feet, find the length and width.

Can you please show me how you get the answer as well? I believe the answer is 10 feet = length and width is 2 feet.
Thanks
Click here to see answer by rapaljer(3620)

Question 9343: Sorry but I typed an error in the formula before. I am not sure this matters or not. I previously posted it as follows: x^2 + 3x - 10 + 0.
It should be = 0 not + 0 So here it is again.

Choose the correct solutions for the quadratic equation x^2 + 3x - 10 = 0.
I believe the answer to this one is (-5, 2)
Thank You
Click here to see answer by rapaljer(3620)

Question 9293: Hi I need a little help with this problem. The directions are to find the LCD and do not combine fractions.
13/x^2-16, 7/x-4
If you could show how you did the problem it would be a big help.. Thank you.
Click here to see answer by rapaljer(3620)

Question 9605: hi i need help for this equation and how to to arrive at the answer.
solve (find values) for A, B, C, D, F
(x^4 - 4x^2 - 7x - 28) = A(x^B + C)(x^D - F)
Click here to see answer by khwang(438)

Question 9659: How do I completely Factor ?
Click here to see answer by Earlsdon(4898)

Question 9697: How is (2a+4)(a-3)-(2a+4)(2a-1)completely factored to get -2(a+2)(a+2)as the answer?
Click here to see answer by Earlsdon(4898)

Question 9656: How do I completely factor ?
Click here to see answer by Earlsdon(4898)

Question 9727: If P=x+1/x-1 and Q=x-1/x+1, find P^2+Q^2-PQ.
Click here to see answer by khwang(438)

Question 9834: help me simplify this expression {negative 34x+5y+18x-14y}
Click here to see answer by huntingmaster325(15)

Question 10076: I got a problem that I don't even know where to begin at. Maybe someone can help me out and explain by showing me how to do this problem.
Simplify: 2x(3-5x-2x^2) - (10x - 5x^3)

Thanks
Click here to see answer by Earlsdon(4898)

Question 10285: my question is,I have a math question that looks like this y-7=8. the uestion is what does the letter (y)and (x) represent when working with evaluate,simplify, and sloving variable expression and equations
Click here to see answer by longjonsilver(2297)

Question 10305: How do I solve (2a+3b)^3
Click here to see answer by Earlsdon(4898)

Question 10217: Find the following:

(3a^2b^3/5c^2)^4

Since this does not have the same variables, I'm lost. Thanks for your help.
Click here to see answer by Earlsdon(4898)

Question 10197: hey can you help me on these three questions they are
1. 10-3+(2+5)=?
2. 7+18-(6-3)=?
3.[(7*4)+3]+15=?
Click here to see answer by arunpaul(104)

Question 10624: What is (5x^2 + 3x +2)^2
I remember FOIL, but forget this one.
Click here to see answer by Earlsdon(4898)

Question 10640: 7.23x^2 + 11.67x + 19.49 = 32.35
im having major trouble. can you please help me out with this one? Thank you
Click here to see answer by WannabeCAgirl83(35)

Question 10789: How do you solve x-y2(x0-y)?
Click here to see answer by rapaljer(3620)

Question 10842: t multiplied by t to the 5th power multiplied by t to the forth power
Click here to see answer by bonster(299)

Question 11374: If the sides of a square are lengthened by 7in. the area becomes 121 in.2 Find The Length of a side of the original square
Click here to see answer by Earlsdon(4898)

Question 11410: 2a+3b+c/2d, when a = 2, b = 0, c = 3, and d = -5
2(2)+3(0)+3/2(-5)
4+0+(3/-10)
4+0+ -3.33
=4+ -3.33
=0.67
Click here to see answer by tishy(4)

Question 11415: Multiply: [(1/5)a + (2/3)][(1/5)a – (1/6)]
I am having problems with this problem. can someone show me how to do this one.
Thanks alot.

Click here to see answer by JBmath26(1)

Question 11485: 2 1/3{4/3-2/5(3/4+3/7)}
Can anyone help me solve this one.
Click here to see answer by Earlsdon(4898)

Question 11493: 3(x+y)^2+4(x+y)-6 when x=4 and y=-1

Please help me solve this problem.
Click here to see answer by usyim88hk(157)

Question 11497: (-12c^4)(-1/2c^5) (-2c^2)

Please help me solve this problem.
Click here to see answer by usyim88hk(157)

Question 11497: (-12c^4)(-1/2c^5) (-2c^2)

Please help me solve this problem.
Click here to see answer by Earlsdon(4898)

Question 11482: {6^2+7[6-2(10/5)+3^2.2]}/4
Please help me solve this one.
Click here to see answer by usyim88hk(157)

Question 11540: student aged 15 taking mocks having extreme difficulty grasping factorisation. can anyone please explain in language i can understand. thanking you in advance as any help is greatly needed.
Click here to see answer by elima(1433)

Question 11662: 2a+3b+c/2d when a=2, b=0 c=3 and d=-5
Please help solve this problem. Thanks.

Click here to see answer by glabow(165)

Question 12100: Y=x^4
is this a function?
what does it mean? ect....
Click here to see answer by rapaljer(3620)

Question 12233: (x-1)(x+2)(2x-3)(3x-6)(x+1)=0
the no of possible values of x that are integer
Click here to see answer by longjonsilver(2297)

Question 12380: no matter what i do, i can't figure this 1 out, please help 3y(2y-3)(3y-4)=0
Click here to see answer by rapaljer(3620)

Question 12375: A, B, and C can finish a job in 6 days. If B and C work together, the job will take 9 days; if A and C work together, the job will take 8 days. How many days will it take each man to do the job alone?
A. A in 9 days, B in 1 day, and C in 8 days
B. A in 25 days, B in 12 2/3 day, and C in 28 days
C. A in 20 1/2 days, B in 16 day, and C in 25 days
D. A in 18 days, B in 24 day, and C in 14 2/5 days
I don't have a clue where to begin with this problem. I would appreciate any help--thanks
Click here to see answer by AnlytcPhil(958)

Question 12495: please help me solve this equation: 3x-2=x +8
Click here to see answer by Earlsdon(4898)

Question 12598: please help me solve these following questions:
simplify the following radicals. :
squar foot of 50=?
squar foot of 325=?
squar foot of 96=?
squar foot of 256=?
Click here to see answer by rapaljer(3620)

Question 12600: please help me solve these fololowing questions:
simplify the following radicals:
squar foot of 245
squar foot of 80
and the missing length of the triangle (right triangleS)
A= 8 B=12 what is C?
A-2 C=squar foot of 13 B=?

Click here to see answer by AdolphousC(70)

Question 12696: 10x^4+27x^3+52x^2+45x=28 divided by 2x^2+3x+4
Click here to see answer by AdolphousC(70)

Question 12742: The directions say to factor as completely as possible
(x-5)^3 -1
The answer is (x-6) (x^2 -9x +21)
I cannot figure out how to get this answer. Can you please show the steps?
Click here to see answer by glabow(165)

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