Questions on Algebra: Complex Numbers answered by real tutors!

Tutors Answer Your Questions about Complex Numbers (FREE)

Question 29482: Solve the equation
5x/2x+2 = 2x/3x+3 + 2x+3/x+1
First of all, is the LCD 6x +6?
If it is, after I get done multiplying everything by 6x + 6, I get a huge problem that doesn't look like I can solve it.
This is what I get:
4x(squared)+ 4x +24x + 36 = 15x(squared) + 15x.
Is this even close?
Click here to see answer by longjonsilver(2297)

Question 29480: Simplify the complex fraction:
4 + 2/x / x/4 + 1/8
The first thing I have to do is multiply the first equation by the reciprocal of the second equation. After that I do not know what to do.
Click here to see answer by josmiceli(9645)

Question 29674: How do you work the problem (9+2i)+(1-7i) ?
Click here to see answer by sdmmadam@yahoo.com(530)

Question 29688: Please help me solve this equation
x^4 + 12x^2 -64 = 0
Click here to see answer by ikdeep(226)

Question 29687: Please help me solve this equation
(2x+1)(3x-2) = 55
Click here to see answer by ikdeep(226)

Question 29686: Please help me solve this equation
(3x-1)(3x-1)+36 = 0
Click here to see answer by ikdeep(226)

Question 29685: 5x(squared) - 2x + 1 = 0
Click here to see answer by sdmmadam@yahoo.com(530)

Question 29852: I am trying to do complex conjugate and modulus numbers but I am unsure of how to do (2+3i)^3
Click here to see answer by Cintchr(481)

Question 29843: how do you find the nth term of a negative complex number?
for example the fourth roots of -4
Click here to see answer by venugopalramana(3286)

Question 29900: What is the value of the discriminant to the graph of y=ax2 + bx + c?
Click here to see answer by Cintchr(481)

Question 30004: Perform the indicated operation. Write the result in the form a + bi
(9 + 7i) - (-4 + i)
Please help...I am having so much trouble with these.
Thank you guys for all your help!!!!!
Click here to see answer by Cintchr(481)

Question 30038: 3x^2 - 2x - 3 = 0
Please help me solve this equation
Click here to see answer by sdmmadam@yahoo.com(530)

Question 30038: 3x^2 - 2x - 3 = 0
Please help me solve this equation
Click here to see answer by AnlytcPhil(1276)

Question 30294: I have been asked to simplify an expression containing complex numbers and I am not sure how to do it. Please help me!
-3i/5 + 4i Translation: -3i divided by 5 + 4i Thanks a lot. I am not doing
that well in Algebra Two right now.
Click here to see answer by venugopalramana(3286)

Question 30282: (6+8i)- (-7+i)
I come up with 13+ 9i but I am not sure, can you help?
Click here to see answer by venugopalramana(3286)

Question 28114: solve 5t-26=18t
Click here to see answer by AlgebraGirl08(3)

Question 30690: 5x^2=10x over x^2-x-6 divided by 15x^3+45x^2 over x^2-9
Click here to see answer by sdmmadam@yahoo.com(530)

Question 31295: please help me with this problem.find a quadratic equation with roots (4+i)and (4-i). thank you

Click here to see answer by longjonsilver(2297)

Question 31315: I need to solve for a in the equation V = xyz,
where , , and .
This comes from a real world research problem I am working on, minimizing the area of a rectangle while keeping the volume constant.
Here is the final problem.
we need to get (a) on left side in units of (V) to right side from this:

Thank you for your help!
Click here to see answer by stanbon(57211)

Question 31407: (((sqrt-8 + sqrt-18 - sqrt-32)))
Click here to see answer by benni1013(197)

Question 31417: (((1^12-i^11)))^2
Click here to see answer by stanbon(57211)

Question 31422: (5-4i)^2
Click here to see answer by stanbon(57211)

Question 31468: The arithmetic mean of two numbers x and y is the unmber x+y/2. If x and y are rational numbers, what can you conclude about their arithmetc mean?
The geometric mean of two positive number x and y is the number squared xy. If x and y are positive rational numbers, can you conclude that their geometric mean is also rational? Explain
Click here to see answer by venugopalramana(3286)

Question 31526: Simplify the complex fraction?
1 + 1/x= 30/x2
Click here to see answer by benni1013(197)

Question 31529: Simplify
25x2 - 9y2/xy
-------------- divide by
5/y - 3/x
Click here to see answer by benni1013(197)

Question 31530: 1+ 1 over x = 30 over x squared
Click here to see answer by checkley71(8403)

Question 31553: Can you help me solve x/2+1/15=1/30X
Click here to see answer by checkley71(8403)

Question 31759: If cost varies inversely as the square of the number purchased, and 5 can be purchased for $45, how much would 10 cost?
Click here to see answer by mukhopadhyay(490)

Question 31758: John traveled 135 miles in 4 hours fewer than it took David to travel 945 miles. If the speed of John was three times that of David's, what was the speed of each for how long did each travel?
Click here to see answer by atif.muhammad(135)

Question 31891: The shoe store has twice as many black shoes as it does brown shoes. The total number of shoes is 66. How many brown shoes are there?
Click here to see answer by elima(1433)

Question 31895: If g(x)=x squared + 2x + 1, D = {Reals}, then g(-2)=
Click here to see answer by longjonsilver(2297)

Question 31896: 5+2i divided by -7i+3
Click here to see answer by longjonsilver(2297)

Question 31897: the factorization of 2x squared + 7x - 15
Click here to see answer by mukhopadhyay(490)

Question 31933: Gina is 9 years younger than her sister, Bridgette. Two years ago, Bridgette was twice as old as Gina was. How old is gina now?
Click here to see answer by Paul(988)

Question 32023: Sean earns $4.50 oer hour more than his trainee, Tyrone. During one 8 hour day, they earn a total of $284. How much does Tyrone make per hour?
Click here to see answer by Paul(988)

Question 32034: Find the number that is 3/4 of the way from 3/5 to 2 2/3
Click here to see answer by Fermat(127)

Question 32034: Find the number that is 3/4 of the way from 3/5 to 2 2/3
Click here to see answer by mbarugel(146)

Question 32048: Leo works at the Bagel shop after school and on saturdays. He is paid $4 per hour after school and $5 per hour on Saturday. Last week Leo worked a total of 12 hours and make a total of $52.50. How many hours did her work after school?
Click here to see answer by Paul(988)

Question 32032: Solve:
3x - y = 4
xy = 7
Click here to see answer by mukhopadhyay(490)

Question 32036: m + 3 divided by m - 3 < or equal to 2, D = {Reals}
Click here to see answer by ikdeep(226)

Question 31894: 3x-y=4
xy=7
Click here to see answer by checkley71(8403)

Question 32021: Joe has 16 baseball cards that football cards. He also noticed that of the total he has three times as many baseball cards as football cards. How many football cards does he have?
Click here to see answer by mukhopadhyay(490)

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