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 35348:
Click here to see answer by crunked_3000(3)

Question 35364This question is from textbook

: please help with this one:Write equation of the circle in standard form and sketch its graph:5x^2 + 5y^2 +10x + 1 = 0
I keep ending up trying to get a square root of a fraction and this is what I have so far:
x^2 + y^2 + 2x + 1/5 =0 (so what do I do with the 5?)
x^2 + 2x + y^2 + 1/5 = 0
x^2 + 2x + 4 = y^2 + 1/5 = ??? I am missing a step to get here - thanksThis question is from textbook

Click here to see answer by narayaba(40)

Question 35390: Can someone show me how to rationalize the denominator...Please
1/4-sqrt2 one divided by 4 - square root of 2
Thanks
Click here to see answer by lyra(94)

Question 35293: I NEED HELP WITH:
(x^2 - 3x + 5)+(x^2 + 2x - 3)
Click here to see answer by lyra(94)

Question 35335: I NEED HELP FACTORING:
Y^2-10Y+25
Click here to see answer by lyra(94)

Question 35294: I NEED HELP FACTORING:
X^2 - 6X + 5
Click here to see answer by lyra(94)

Question 35294: I NEED HELP FACTORING:
X^2 - 6X + 5
Click here to see answer by scoop(27)

Question 35429: How can I divide the two problems below, I have been working on these for the last two days

(14x^3 - 21x^2 + 4x - 6) by (2x - 3)

(3x^3 + 4x^2 - 7x + 2) by (x - 2/3)

Click here to see answer by stanbon(26259)

Question 35428: How do I divide
18x^2y - 9x + 6y^2 by 3xy
Click here to see answer by stanbon(26259)

Question 35412: Can someon help me simplify a complex fraction??
(1/x+2/y)/(4/xy)
Click here to see answer by stanbon(26259)

Question 35410: Cant figure out this word problem, any help would be nice.
Jake can cut and split a cord of firewood in 6 fewer hours than Mike. When they work together, it takes them 4 hours. How long would it take each of them to do the job alone?
Click here to see answer by stanbon(26259)

Question 35413: i need help factoring trinomials
Click here to see answer by Prithwis(166)

Question 35455This question is from textbook prentic hall mathematics algebra 1
: The original problem was Alice is planning a rectangular garden. Its length is 3 ft less than twice its width. Its area is 170 ft ^2. Find the dimensions of the garden. We must write an equation and solve it. I already made the equation, which is (2w-3)(w)=170, but I do not know how to solve it. Could you show it step-by-step?This question is from textbook prentic hall mathematics algebra 1

Click here to see answer by rapaljer(3620)

Question 35454: Which of the following expressions represents the product of 3 less than twice x and 2 more than the quantity 3 times x ?
How would I write this out in a Rational expression?

Click here to see answer by rapaljer(3620)

Question 35387: I tried this, can someone just let me know if I am right?
(x^-1+y^-1)/(x^-1y)
I cancelled out the x^-1, which left me with y^-1/y, which I think is (1/y)/(y)
Thanks!!
Click here to see answer by stanbon(26259)

Question 35423: Perform each indicted operation
4x^3 - (2x^3 + 3x)+ (7x^2 - 5x)
Click here to see answer by rapaljer(3620)

Question 35421: (1/4-1/x^2)/(1/2+1/x) can someone help me simplify this complex fraction?
Click here to see answer by mukhopadhyay(490)

Question 35319This question is from textbook Algebra

: I need help with this Equation:
4 over x+1 minus
1 over x equals 1

Thank youThis question is from textbook Algebra

Click here to see answer by Nate(3495)

Question 35425: Perform the indicated operation
(-3x^4 + 4x^2 - 7x + 10) - (-2x^3 + 6x^2 - 5x + 3)
Click here to see answer by Nate(3495)

Question 35385: simplify the rational expression
- x^2 + 10x - 21 / -3x^2 + 23x - 14
Click here to see answer by mukhopadhyay(490)

Question 35317: Adding rational #
Cant figure this problem out..Any help will be appreciated.
5 1
_____ + _______
7x+35 42x+126

I tried factoring both Denominator
7(x+5) 42(x+3)
then 7(42)=294(x+5)(x+3)
I am lost after that
Click here to see answer by rapaljer(3620)

Question 35313: Please help me!
ADDING
3 5
--------- + --------
2w+10 w+5
Click here to see answer by rapaljer(3620)

Question 35312: Cant figure this problem out..Any help will be appreciated.
5/7x+35
+
1/42x+126
I started off with LCD...
7x+35= 7(x+5)
42x+126=42(x+3)
7.42=
294(x+5)(x+3)
I'm lost afterthat
Click here to see answer by rapaljer(3620)

Question 34236: solve for x
5/6 = x12
Click here to see answer by rapaljer(3620)

Question 35411: Can someone please help me?
(x^-+y^-1)/(x^-1y)
Click here to see answer by rapaljer(3620)

Question 35378: (x^-1+y^-1)/(x^-1y) I tried this, but just not sure.
I cancelled out the x^-1, and that left me with y^-1/y wich I believe is (1/y)/(y) can you tell me if this is right?
Click here to see answer by rapaljer(3620)

Question 35509: Can someone help me solve this for X
sqrtx+7 = x+1
Click here to see answer by Nate(3495)

Question 35509: Can someone help me solve this for X
sqrtx+7 = x+1
Click here to see answer by rapaljer(3620)

Question 35511This question is from textbook Algebra I
: 7n(n)(n)(n)(n)+7n(n)(n)(n)-3n(n)-6n-3This question is from textbook Algebra I

Click here to see answer by Nate(3495)

Question 35511This question is from textbook Algebra I
: 7n(n)(n)(n)(n)+7n(n)(n)(n)-3n(n)-6n-3This question is from textbook Algebra I

Click here to see answer by Prithwis(166)

Question 35384: Can someone please help??
(5^-1+x^-1)/(x^-2+25^-1)
Click here to see answer by elima(1433)

Question 35552: how do you factor a binomial that has no common factors and are not perfect squares?
For example- how would you factor
4m^2+7m or
7m^2-4m
Click here to see answer by Earlsdon(4898)

Question 35562: Factor each polynomial
V^2 - 22v - 75
Click here to see answer by rapaljer(3620)

Question 35566: Factor completely
16x^2 - 2x - 3
Click here to see answer by rapaljer(3620)

Question 35567: I am suppose to factor out this problem to the GCF but my book does not show how to do a fraction. Can you help??
3/2x4-x3+5/2x2+x
the numbers after the x are exponets. I appreciate any help you can give me.
Click here to see answer by rapaljer(3620)

Question 35565: Solve each equation
W^3 + 5w^2 - W = 5
Click here to see answer by rapaljer(3620)

Question 35560: Factor each polynomial completely.
9bn^3 + 15bn^2 - 14bn
Click here to see answer by Earlsdon(4898)

Question 35576: Emily has factored a particular polynomial as (a-b)(x-y). George factors the same polynomial and gets (b-a)(y-x). Who is correct and why?

Click here to see answer by narayaba(40)

Question 35558: A trianglular sail has an area of X^2 + 5x + 6 square meters plus a height of x + 3 meters. Find the length of the sails base.
Click here to see answer by narayaba(40)

Question 35561: Solve each equation
1/18h^2 - 1/2h + 1 = 0
Click here to see answer by Earlsdon(4898)

Question 35587: solve:
3+1/x-2=2x-3/x-2
Click here to see answer by Nate(3495)

Question 35586: solve the equation.
(-2/x)=(3/x)+2
Click here to see answer by Nate(3495)

Question 35637: R = (0.75V/pie)^3
Where V is it’s volume, find the radius of a spherical tank that has a volume of 32 pie/3 cubic meters

Click here to see answer by rapaljer(3620)

Question 35641: Towering antenna. A guy wire of length 50ft is attached to the ground and to the top of an antenna. The height of the antenna is 10ft larger than the distance from the base of the antenna to the point where the guy wire is attached to the ground. What is the height of the antenna?
Click here to see answer by stanbon(26259)

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