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

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Question 31382: factor completely
4x^2-28xy+49y^2
Click here to see answer by mukhopadhyay(490)

Question 31381: factor completely
12x^2yz^3-15xy^2
Click here to see answer by mukhopadhyay(490)

Question 31381: factor completely
12x^2yz^3-15xy^2
Click here to see answer by benni1013(141)

Question 31392: factor completely
27x^3+343
Click here to see answer by venugopalramana(3286)

Question 31393: factor completely
15x^3-6x^2-5xb+2b
Click here to see answer by Earlsdon(4898)

Question 31393: factor completely
15x^3-6x^2-5xb+2b
Click here to see answer by josmiceli(3003)

Question 31401: Use FOIL to multiply:
(5x – 8)(x – 7)
Click here to see answer by askmemath(368)

Question 31405: I need some help with this.
24 / x - 3 = 72 / x + 3
Click here to see answer by benni1013(141)

Question 31396: Use the indicated property to write an expression that is equivalent to the following expression.(3x20)x13 (associative property of multiplication)
Click here to see answer by benni1013(141)

Question 31505: Can some one help me with this?
One-third of a number is 5 less than half of the same number. What is the number?
Click here to see answer by mukhopadhyay(490)

Question 31501: factor completely
12x^yz^3-15xyz^3
so far I have
3xy(4xz^2-5y)
3xy[x(2z)^2-5y]
I just don't have the last step
Click here to see answer by mukhopadhyay(490)

Question 31508: (x+y)^3+(y-4)^3
Click here to see answer by venugopalramana(3286)

Question 31512: I think my teacher is rong about the answer on this one can some one solve it please just to see if hes rong or if im rong.
(X/5) - (x+2/3) = 1/15
Click here to see answer by Cintchr(475)

Question 31513: Factor: p^2-p-90
Click here to see answer by mukhopadhyay(490)

Question 31575: find the product
(6x -2) (2x +2)
Click here to see answer by stanbon(26259)

Question 31555This question is from textbook Introductory & Intermediate Algebra

: Perform the indicated operation. Simplify if possible.
x^2 - 6x + 8 x^2-15x+56
------------ * --------------
x^2-17x+70 x^2 - 15x + 44

This question is from textbook Introductory & Intermediate Algebra

Click here to see answer by Cintchr(475)

Question 31595: z^3-64/z-4

Click here to see answer by longjonsilver(2297)

Question 31600: simplify/Reduce
x^2-x-12
_________
16-x^2
Click here to see answer by mukhopadhyay(490)

Question 31607: solve
(x-6)(x+4)=11
Click here to see answer by mukhopadhyay(490)

Question 31602: simplify/Reduce
16 4
_______ - ___
x^2+2x-3 x+3
Click here to see answer by mbarugel(146)

Question 31609: I think I may have asked wrong simplify/Reduce
16/x^2+2x-3
minus
4/x+3
Click here to see answer by Cintchr(475)

Question 31631: Cant solve this need some help.
X-2/2 minus X+2/4 = 1/2
Click here to see answer by Cintchr(475)

Question 31628: 6y+2(2y+3)=16
Click here to see answer by mukhopadhyay(490)

Question 31659: 2X+2/X^2-4
MINUS
X+15/X^2-4
Click here to see answer by benni1013(141)

Question 31674: Please Help Me Solve This Equation
Simplify (4c^3d^5)(-2xy^3)
Click here to see answer by checkley71(8405)

Question 31668This question is from textbook Glencoe Algebra 1
: I have no clue how to do this... Will you help me please?This question is from textbook Glencoe Algebra 1

Click here to see answer by elima(1433)

Question 31725: Could someone PLEASE help me with these? I need help badly. Thanks for your time.
1. A plane flies 720 mi against a steady 30-mi/h headwind and then returns to the same point with the wind. If the entire trip takes 10 h, what is the plane’s speed in still air?
2. Solve for x. 2/5=x-2/20
3. Kevin earned $165 interest for 1 year on an investment of $1500. At the same rate, what amount of interest would be earned by an investment of $2500?

Click here to see answer by Paul(988)

Question 31732: I am having trouble with understanding how these problems are worked out. what do I do first, step by step. factor first or after? just really confused.

Thank you,
CARMA:)
p.s it is 4a over the 5a and vice vera.
Click here to see answer by mbarugel(146)

Question 31734: Factor Completely
x^2-6wy+3xy-2wx
Click here to see answer by mukhopadhyay(490)

Question 31733: I wanted to check my homework, to make sure it is correct.
Factor completely x^3-26x^2+48x
1.Reoreder the terms
48x+-26x^2+x^3
2. Solve for x/factor out the GCF
x(48+-26x+x^2
x(2+-1x)(24+-1x)
Click here to see answer by elima(1433)

Question 31775: Can someone please check my work, seems like I missed a step.
factor completely
x^3-26x^2+48x
=x(48+-26x+x^2
x(2+1-1x)(24+-1x)
Thank you
Click here to see answer by atif.muhammad(135)

Question 31776: Can someone please check my work, seems like I missed a step.
factor completely
x^3-26x^2+48x
=x(48+-26x+x^2
x(2+1-1x)(24+-1x)
Thank you
Click here to see answer by stanbon(26259)

Question 31810This question is from textbook Algebra 1: Integration Applications and Connections

: GCF of 18,45This question is from textbook Algebra 1: Integration Applications and Connections

Click here to see answer by benni1013(141)

Question 31826This question is from textbook Holt Algebra

: x squared+8x+16This question is from textbook Holt Algebra

Click here to see answer by ikdeep(182)

Question 31887: i am factoring to get the sum or difference my first problem is x^3-8 can you show me how to do it
Click here to see answer by mbarugel(146)

Question 31903This question is from textbook Intermeadiate Algebra

: I can't figure this one out. I need to factor this 36x^4y^2 - 49z^4. Can you help me PLEASE? Another one giving me trouble is factoring x^2 -5x -14.This question is from textbook Intermeadiate Algebra

Click here to see answer by Cintchr(475)

Question 31922: if an accountant has $24,000 in his pocket, and a female deposits $35 francs into every bank in the country, how much money will the government pay the man, if he does babysits for him?
Click here to see answer by Earlsdon(4898)

Question 31921: I'm having a hard time understanding the step by step process in factor competely. Here are my answer, but I'm still not comfortable with it, please check my work and point out my errors. Greatly apprecated.Thank you
Factor completely:
x2 – 5x – 14
x^2-5x-7
Factor completely:
4x2 – 36y2
=2x^2-18y^2
=(2x^2- 9y^2)
=(2x^2-3y^2)

Click here to see answer by benni1013(141)

Question 31958: I know how 2 do the majority of this problem, but theres 1 part that I get stuck on, so I was wondering if u can help me out wit it?
x^2 - 6x = 16 (Original problem)

Solution:
x^2 - 6x = 16

x^2-6x+(3)^2= 16+(3)^2
x^2-6x+9= 16+9
(x-3)^2= 25....Wut comes after this???
Click here to see answer by longjonsilver(2297)

Question 31967This question is from textbook Intermedate Algebra

: Solve for x
x^3 + 3x^2 - 4x - 12 = 0This question is from textbook Intermedate Algebra

Click here to see answer by stanbon(26259)

Question 31986This question is from textbook INTERMEDIATE ALGEBRA

: 2X
____
X + 5
_________
X2 THIS IS MEANT TO BE X SQUARED
____
X-1
I HOPE YOU CAN TELL THAT THIS PROBLEM IS A FRACTION DIVIDED BY A FRACTION!
I WOULD LIKE TO KNOW IF THE LOWEST COMMON DENOMINATOR IS (X+5)(X-1)?
I HAVE LEARNED TO TAKE THE LCD AND MULTIPLY IT BY THE FRACTION THE IN THE NUMERATOR AND DENOMINATOR, ALTHOUGH FOR SOME REASON I AM NOT COMING UP WITH THE SAME ANSWER AS THE BOOK! CAN YOU HELP? This question is from textbook INTERMEDIATE ALGEBRA

Click here to see answer by stanbon(26259)

Question 31992This question is from textbook Algebra1

: How do you factor trinomials that are equal to something such as:x^2-x+56=17x
This question is from textbook Algebra1

Click here to see answer by Earlsdon(4898)

Question 32044: I need help but not sure if I had picked the right topic for this. Here are the problems and all have to be factor completely evidently.
1.x^3-26x^2+48x
2.x^2-6wy+3xy-2wx
3.x^2-5x-14
4.4x^2-36y^2
5.3x^2-2x-8
6.24x^2+10x-4
I am really sorry for putting 6 of these on here but I just do not understand algebra at all. I will appreciate all the help that I can get. Thank you!!!
Click here to see answer by AnlytcPhil(958)

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