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

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Question 53808This question is from textbook

: I am supposed to find the imaginary solution to the following equation and check my answer. 9x^2-6x+4=0 So far I have:
x=(6+/- sqrt(6)^2-4(9)(4))/18
x=(6+/- sqrt-108)/18
x= (6+/- 6i sqrt3)/18
x=(1+/- i sqrt3)/3
This does not check where did I go wrong?
This question is from textbook

Click here to see answer by anjulasahay(30)

Question 54062: need help on factoring this polynominal 4s+6st-14st^2
Click here to see answer by AnlytcPhil(958)

Question 54069This question is from textbook Algebra and Trigonometry
: Please help me with this problem:
The degree three polynomial f(x) with real coefficients and leading coefficient 1, has 4 and 3 + i among its roots. Express f(x) as a product of linear and quadratic polynomials with real coefficients.This question is from textbook Algebra and Trigonometry

Click here to see answer by stanbon(26259)

Question 54076This question is from textbook Beginning Algebra

: Write expression in simplest form.(the ^ shows that the following number is a power: 4r^2 = 4r squared)
4r^2-25s^2 /
2r^2+3rs-20s^2This question is from textbook Beginning Algebra

Click here to see answer by funmath(2873)

Question 54088This question is from textbook Beginning Algebra

: Section 3.4
Just need to know if I did this right.
62.
(m^2-5mn+3n^2)(m^2+4mn-2n^2)
my answer is m^4+1m^3n-17m^2n^2+22mn^3-6n^4This question is from textbook Beginning Algebra

Click here to see answer by funmath(2873)

Question 54096: I need help learning the steps to this problem.
For the following polynomial find f(t-2)
((( f(x)=-x^2+4x=6 )))
Click here to see answer by stanbon(26259)

Question 54095: I need help learning the steps to this problem.
Completely factor the polynomial
((( x^3-2x^2-5x+6 ))) given that x-1 is a factor
Click here to see answer by stanbon(26259)

Question 53846: Hi guys! Some of you may already know me as aaaaaaaa, and I'm asking a question:
Solve the equation:

j and c are in N (natural numbers).
I know that , but the question is: Is there a way to solve this without trial-and-error and find out that g=50, c=7?
Click here to see answer by AnlytcPhil(958)

Question 54070This question is from textbook Algebra and Trigonometry
: Please help me with this problem:
The figure shows the graph of the polynomial function y=f(x). For which of the values k = 0, 1, 2, or 3 will the equation f(x) = k have complex roots?This question is from textbook Algebra and Trigonometry

Click here to see answer by jake_6233(74)

Question 54139: I received these problems from my instructor which I can't find in the text:
1.) 2/(3x) + 3/(2x) =
2.) 1/(x + 1) + 1/(x-1) =
3.) x/2 + 2/x =
Can someone help me with these? I've even tried using the equation calculator but tt comes up with a syntax error. I haven't had math in a while so any explanations of the rule will be helpful as well.
Thanks
Click here to see answer by funmath(2873)

Question 54288: I can't seem to find this anywhere in the textbook...
I need to find out how to factor of these polynomials...please help!
x^2 - 5x - 6
x^2 - x - 20
Click here to see answer by stanbon(26259)

Question 54263: i need help solving this equation for y: 5{-7[6y+9(7-y)-5]+y} = 6(y + 9)
i tried doing the opposite of order of operations. i've tried distubuting everything. if u could help me, i would appreciate it a lot. thank you. :) -Guadalupe
Click here to see answer by stanbon(26259)

Question 54250: how do you solve 30-n=20+3(n+2)
Click here to see answer by Cintchr(475)

Question 54304This question is from textbook
: m=2(x+n)

so far i did this:
m=2(x+n)
m=2x+2n
-2n -2n
---------
m-2n=2x
---- ---
2 2
m???= x
can you divide 2n by 2?This question is from textbook

Click here to see answer by jainenderkapoor(60)

Question 54286: 2 divided by 2/X + 2/Y is problem one...i have an answer guide so i know the answer i just don't know how to do it on my own
2x^2/3y * y^3/8x is problem two... this too i have the answer to but i don't know how to do it myself
Click here to see answer by jainenderkapoor(60)

Question 52996This question is from textbook

: given that (3x-a)(x-2)(x-7)= 3x^3-32^2+18x-70 determine the value of aThis question is from textbook

Click here to see answer by venugopalramana(3286)

Question 54255: help me solve (2x-5)squared=4x(x-2)+61
Click here to see answer by jainenderkapoor(60)

Question 54205: Express as a polynomial: (x+a)(x^2-ax/x)
Click here to see answer by funmath(2873)

Question 54397: HELP!!
Write the expression in simplest form:
4r^2-25s^2 over 2r^2+3rs-20s^2
Thank you so much!!
Click here to see answer by Nate(3495)

Question 54397: HELP!!
Write the expression in simplest form:
4r^2-25s^2 over 2r^2+3rs-20s^2
Thank you so much!!
Click here to see answer by funmath(2873)

Question 54411This question is from textbook algebra and trigonometry
: PLEASE HELP ME WITH THIS PROBLEM :
Find a polynominal with leading coefficient 1 and degree 3 that has -1, 1, and 3 as roots.
This question is from textbook algebra and trigonometry

Click here to see answer by Nate(3495)

Question 54426: I am having a hard time dividing this rational expression: PLEASE HELP!
6p-18 over 9p divided by 3p-9 over p^2+2p
Thanks in advance!
ac
Click here to see answer by funmath(2873)

Question 54457This question is from textbook Stratedies for problem solving workbook
: I need help please. if x=yz,find the value for x given that y=2 and z=5.This question is from textbook Stratedies for problem solving workbook

Click here to see answer by tutorcecilia(2042)

Question 54470This question is from textbook ALGEBRA AND TRIGONOMETRY
: PLEASE HELP ME WITH THIS PROBLEM;
fIND ALL ROOTS OF THE POLYNOMIAL X^3 - X^2 + 16X - 16This question is from textbook ALGEBRA AND TRIGONOMETRY

Click here to see answer by Edwin McCravy(2920)

Question 54472This question is from textbook ALGEBRA AND TRIGONOMETRY
: PLEASE HELP ME WITH THIS PROBLEM:
Find the polynominal f(X) of degree three that has zeroes at 1, 2, and 4 such that f(0)=-16.This question is from textbook ALGEBRA AND TRIGONOMETRY

Click here to see answer by Edwin McCravy(2920)

Question 54509This question is from textbook Algebra Structure and Method book 1
: three quarters of a number is 21. find the numberThis question is from textbook Algebra Structure and Method book 1

Click here to see answer by rchill(405)

Question 54530This question is from textbook Beginning Algebra

: I didn't see another section for trinomials and factoring. I am having problems please help.
Find the GCF, in which I know is 6 but I don't know what to do with the letters.

pg. 353 #14. 12a^3b^2,18a^2b^3,6a^4b^4This question is from textbook Beginning Algebra

Click here to see answer by stanbon(26259)

Question 54480: Can someone help me subtract this rational expression??? PLEASE!!
5a-12 over a^2-8a+15 - 3a-2 over a^2-8a+15
so far I have 5a-12-3a+2 over a^2-8a+15......now I am stuck! Help!!
Thank you so much!
ac
Click here to see answer by wgomero(28)

Question 54588This question is from textbook Algebra- Structure& Method Book1
: 27.r=ab/a+b (solve for a)
29.C=K(Rr/R-r) solve for RThis question is from textbook Algebra- Structure& Method Book1

Click here to see answer by funmath(2873)

Question 54595: How do I find "all real zeros" of the function?
f(x) = x^3-3x^2-x+3
Click here to see answer by psbhowmick(456)

Question 54672This question is from textbook Beginning Algebra

: pg. 374 no. 70.
-3s^2-10s+8
I can't get my signs to be correct in order for the 10 to be negative. What am I doing wrong?This question is from textbook Beginning Algebra

Click here to see answer by Edwin McCravy(2920)

Question 54676This question is from textbook Beginning Algebra

: pg. 403 no. 32
9x^2+12xy+4y^2-25. I know I should group the terms and find the GCF. I got 3 for first set of terms but the second term I got lost.This question is from textbook Beginning Algebra

Click here to see answer by stanbon(26259)

Question 54671This question is from textbook Beginning Algebra

: Pg. 365 # 66.
Find all positive values for k for which each of the following can be factored.
x^2+x-k
I don't have an clue or an example within the book to even try.This question is from textbook Beginning Algebra

Click here to see answer by stanbon(26259)

Question 54700: Can you help me with the expression please?!
3/x^2+4x+3 - 1/x^-9
THANK YOU!!
Click here to see answer by stanbon(26259)

Question 54717This question is from textbook Beginning Algebra

: I can't get my answer to come out to 3/4 please show me what I am doing wrong.
9(8x-1)=5(4x+6)
72x+9=20x+30
52x+9=30
52x=21
x=21/52
Thank you for any help.This question is from textbook Beginning Algebra

Click here to see answer by stanbon(26259)

Question 54716: How would i factor this polynomial x^2-9

Click here to see answer by wgomero(28)

Question 54721: Sorry I submitted this question wrong the last time. One little mistake makes all the difference.
3/x^2+4x+3 - 1/x^2-9
Sorry for the mistake! I appreciate your help!
ac
Click here to see answer by wgomero(28)

Question 54759: Determine the value/s of the variable where the expression is undefined :
-16 / j-3
Solve by factoring : x^2+3x+2
Factor Completely: 3x^3-3x^2-6x
Click here to see answer by funmath(2873)

Question 54811: Find the axis of symmetry.
y = x^2 – x + 10
I am unsure of how to start this problem
Click here to see answer by stanbon(26259)

Question 54911This question is from textbook Beginning Algebra

: Will someone help me add this expression. Step by step would be nice! Thanks in advance!
4y/y^2+6y+5+2y/y^2-1This question is from textbook Beginning Algebra

Click here to see answer by stanbon(26259)

Question 54934: PLEASE HELP ME WITH THIS PROBLEM;
solve the equation In(x+5)- In(3)= In (x-3)
Click here to see answer by funmath(2873)

Question 54932: Please help me wit this problem:
Find the exact solution to the equation 3^x+5=9^x
Click here to see answer by rapaljer(3620)

Question 54932: Please help me wit this problem:
Find the exact solution to the equation 3^x+5=9^x
Click here to see answer by stanbon(26259)

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