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

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Question 59059This question is from textbook elementary and intermediate algebra
: Factor 9x^2 - 4y^2
MY WORK - 81X - 16Y
This question is from textbook elementary and intermediate algebra

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Question 59062This question is from textbook elementary and intermediate algebra
: Factor the polynomial 27x^3 - 8y^3


MY WORK 27^3 = 19683x
8Y^3 = 512
This question is from textbook elementary and intermediate algebra

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Question 59024: solve x^4-8x^2+7=0
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Question 59060This question is from textbook elementary and intermediate algebra
: [(3x^2)^3]x^2
-------------.
9x^3
STATES TO SIMPLIFY?????
This question is from textbook elementary and intermediate algebra

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Question 59041: Please help - need to solve:
x/x^2-1 = 1/x+1 + 1/x^2-1

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Question 59097: Please help w/ the following:
2x^-2+3x^-1+1=0
Thank you.

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Question 59160This question is from textbook beginning algebra
: Can you explain to me in a simple way how or a step by step way to evaluate rational expressions?
Chapter 7.1 exercise
# 52. 3x^2+8x+4 over 3x^2-4x-4
Chapter 7.3
# 41. 3 over k^2+5k with a comma between
2 over k^2+3k-10
Thanks for any help you can give.
This question is from textbook beginning algebra

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Question 59111: Factor 27x^3-8y^3
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Question 59221This question is from textbook elementary and intermediate algebra
: This question is from textbook elementary and intermediate algebra

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Question 59327This question is from textbook Alegbra concepts and applications
: I need help solving the following problem please :
Find the excluded values for : 6 (over or divided by) m(m+1)
thank u
This question is from textbook Alegbra concepts and applications

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Question 59329This question is from textbook
: I need help with the following pleas :
Find the quotient
5cd divided by 10c divided by d
This question is from textbook

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Question 59398: Using polynomials times monomials how do i set up the steps in this problem 4(2n + 3) - 3(n - 1) = 0
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Question 59383: Factor
64w^3 + 8x^3


Solve
2x^2 - 11x + 13 = 1

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Question 59422This question is from textbook college algebra
: what is the answer to msquare+4m-21
This question is from textbook college algebra

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Question 59424This question is from textbook college algebra
: 1. what is the answer to msquare+4m-21
2. what is the answer to 2xcube+5xsquare - 12x =0
3. 2ysquare = -3y + 35
4. (4x - 3)(4x + 3)
This question is from textbook college algebra

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Question 59449: please help me with this problem. i don't understand what to do when their is a number in front of the variable, like the 3 in front of y^2
3y^2-15y=12

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Question 59530: Please check for me.
I have factored 3a^2(a-b)-6a(a-b)+21(a-b)
I got 3(a-b)(a^2-2a+7).
Thanks

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Question 59423This question is from textbook college algebra
: what is the answer to msquare+4m-21
what is the answer to 2xcube+5xsquare - 12x =0
2ysquare = -3y + 35
(4x - 3)(4x + 3)
This question is from textbook college algebra

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Question 59537This question is from textbook
: I tried solving the following problem, but my answer didn't match up with the one at the back of the book. The problem asks me to find a polynomial function with integer coeff. that has the given zeros: 0, 3,3+i, 3-i. The answer at the back of the book is x^4-9x^3+28x^2-30x.This question is from textbook

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Question 59542: how do u factor perfect squares and binomials squared?? I can do the simple one but i can't seem to get a hold of the more complicated ones. If u can explain this concept to me I will may extemely happy. Thanks for the help

confused

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Question 59540: a garden area is 30ft long and 20ft wide. a path of uniform width is set around the edge. if the remaining garden is 400ft squared.what is the width of the path?
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Question 59582: x2-4/16x+32
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Question 59596: My question is Problem 78 is definitely not pretty. Your best bet is to use Examples 7 and 8 on pp 311-312 as a model for your solution. It might make life much simpler if you treat the fractions in the x-terms as coefficients.
(x/3 + 3/4)(3x/4 -3/5) (note that these are fractions)

examples 7 and 8 are using the vertical method for polynomials I do not understand i tried to answer this and this is what i got
x + 3 3x - 3
- - x= 4 - - = 3x= 5
3 4 4 5

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Question 59458This question is from textbook
: f(x)=x^2-1 g(x)=1-2x f(g) (-1)(g(f))(-1)This question is from textbook

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Question 59698: (x+5)(3x-1)+13=0


2x^2+3x=20

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Question 59663: When 16b2 + 10b - 21 is factored, one factor is:
4b - 7
8b + 7
2b - 3
16b + 3
none of these

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Question 59754: solve: (x+2)/(x-3)=(x-5)/(x+3)
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Question 59754: solve: (x+2)/(x-3)=(x-5)/(x+3)
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Question 59755This question is from textbook Intermediate Algebra
: Solve each equation. If a solution is extraneous, so indicate.
30/y-2+24/y-5=13
This question is from textbook Intermediate Algebra

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Question 59761This question is from textbook Alegbra concepts and applications
: I need help to solve the following problem please!!!1
Find the excluded values for :
4s over s^2 + 3s
*s^2 is s squared*
THank you!
This question is from textbook Alegbra concepts and applications

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Question 59860This question is from textbook
: Please help me solve this equation: This question is from textbook

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Question 59958: Maya has deposited $600 in an account that pays 5.64% interest, compounded continuously. How long will it take for her money to double?



****can you please assist me with this problem, I can't seem to figure it out. Thanks again

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Question 59838: solve algebra problems
27x to 2 power -3

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Question 59960: I need some help on this question, I keep on getting confused can u please help?
Thanks in advance
A computer is infected with the Sasser virus. Assume that it infects 20 other computers within 5 minutes; and that these PCs and servers each infect 20 more machines within another five minutes, etc. How long until 100 million computers are infected?

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Question 59971: For this equation, solve for A.
CKA/EN=K^2^/H

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Question 59961: I have never been more confused in my life... I tried this for the first one but I don't think that I have it right PLease HELP!!!!!
Thanks


fx=1-3-2+1
fx=3
I'm not too sure about this please please I really need help on this problem

Evaluate each of the functions below at x = 1, 2, 4, 8, and 16. Plot the graph of each function. Classify each as linear, quadratic, polynomial, exponential, or logarithmic, and explain the reasons for your classifications. Compare how quickly each function increases, based on the evaluations and graphs, and rank the functions from fastest to slowest growing.
- f(x) = x3 - 3x2 - 2x + 1
- f(x) = ex
- f(x) = 3x - 2
- f(x) = log x
- f(x) = x2 - 5x + 6

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Question 59829This question is from textbook Intermediate Algebra
: Solve each equation. If a solution is extraneous, so indicate.
(5)/(2z+z-3)-(2)/(2z+3)=(z+1)/(z-1)-(1)
This question is from textbook Intermediate Algebra

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Question 59969: My homework is needed tommorow and have no idea of working through it .
please assist or even a hint would help ...


Power climbers Bi- motors Ltd orders and sells mountain climbers bikers. The company’s cost accountant has examined cost data and established a cost function which expresses the annual cost (C) in K $ of purchasing, owning and maintaining inventory as a function of size of each order (q) it places for the bikes. The function is specifically of the form:
C = 4860/q + 15q + 250,000
Determine the order that minimizes annual inventory list and the minimum average inventory cost per unit.

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Question 59994: I need help working out these equations. My teacher made these problems up.
-8+t/3=7
4(x+3)=20
4y+3
_____ =9
7

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Question 59818: How do I work (3y-5)(2y-7)
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Question 60042This question is from textbook Algebra 2
: How Do I Factorize These problems?
22)y2(squared)-5y+4
and
40)8x2(squared)+8xy+8xz+3x+3y+3z
This question is from textbook Algebra 2

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Question 60087: solve the equation by simplifying both sides and then using transformations to isolate the variable


2x+3x=5

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Question 60125: Solving Rational Equations.
Solve, and check
y/10 = 2/5 + 3/8

-1/3 - 5/4y = 3/4 - 1/6y

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Question 60171: Multiply.
71. (X-1/2)(2X^3-4X^2+3X-2/5)

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