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Question 32209: Hello. I found the division of complex numbers in my book but can't find the multiplication unit in my book. Here is the problem I am trying to work on: Needs to be put in " a+bi " form.
. Any help would be greatly appretiated.
Respectfully,
Chris
Click here to see answer by Earlsdon(4898)

Question 32244: My problem says to solve each equation in the real number system. The problem says 2x^3+3x^2+2x+3=0. I factored the problem by grouping and came out with (2x^2+3)(x^2+1)=0, but when I solve for x I come out with imaginary numbers and I am not supposed to. I would apprecaite any help you could give me in solving this problem. Thanks, Britta
Click here to see answer by venugopalramana(3286)

Question 32470: Hello, tutor!!
I'm in Algebra II right now, and we are currently studdying imaginary/complex numbers. I thought I understood it until I came across this problem...

WHAT IS the square root of -25/121 (Yes, that is a fraction)

Any hint would be awesome!!!
Love, Ari
Click here to see answer by benni1013(141)

Question 32227: 3+i
Click here to see answer by ikdeep(182)

Question 31973: 10 / (3-i2)
(10 divided by 3-i2)
Click here to see answer by mukhopadhyay(490)

Question 32322: The teacher is asking me to simplify this complex fraction.
1
----- +1
a
--------
1
---- -1
a
I am struggling with this problem so any help is appreciated.
Click here to see answer by mukhopadhyay(490)

Question 32623: (7-6i)+(9+11i)
Click here to see answer by venugopalramana(3286)

Question 32705: If g(x) = 2x - 3, D = {Reals}, and h(x) = x squared + 1, D = {Reals}, find:
a) (g + h)(-2)
b) gh(1/2)
Click here to see answer by mukhopadhyay(490)

Question 32746: I've been helping a struggling Algebra 2 student and today he brought home problems about imaginary numbers. I can't remember for the life of me how this works. Here's the problem:
The square root of -36, over the square root of -4.
Click here to see answer by marshalltamika(3)

Question 32726: I'm fairly positive that this is the correct place for the question... I need some assistance in solving this 3rd grade polynome-equation:
x^3+10x^2+26x=0
I've gotten myself stuck in a bunch of mathematical gibberish which I'd rather not submit out of shame (*sobs*). Any help will be appreciated.
Click here to see answer by Earlsdon(4898)

Question 33094: How do u solve systems of equations like this 3x+2y+5z=33
4y-3z=-11
z=5
Click here to see answer by longjonsilver(2297)

Question 30908: perform the indicated operation and simplify:
1+3i/1-2i
Click here to see answer by kietra(57)

Question 31805: 1.|3-5i|
(3-5i)-(3+5i)
(3-3)(-5i-5)i
0-10i
For this problem i took the absolute value and made it in two seperate problems. After i did that i used foil, and seperated again problems. AFter that i solved what was in the parenthesis, then i 0-10i for the answer. I dont i did it right i asked my brother he said it was wrong i dont know if it is right.
Click here to see answer by venugopalramana(3286)

Question 33906: Subtract the complex numbers and simplify: 3+2i/1+2i-1/1/2i= Help! Thank you.
Click here to see answer by sarah_adam(201)

Question 33940: hi, need help with simplifying complex number
i^51, have no idea how to do it, if you can explain it please i will appreciate it
Click here to see answer by stanbon(26259)

Question 34064: Factor completely
10x^3-33x^2+27x
How do I factor completely?
I did it like this but don't think that I did it right
2*5*x*x*x
3*11*x*x
3*3*3*x

Click here to see answer by fanism(39)

Question 34183: Subtract the complex numbers and simplify: 3+2i/1+2i-1/1-2i= Help! Thank you.
Click here to see answer by venugopalramana(3286)

Question 34183: Subtract the complex numbers and simplify: 3+2i/1+2i-1/1-2i= Help! Thank you.
Click here to see answer by Prithwis(166)

Question 34540: (2x-y)+(y-x)i=1+3i
Click here to see answer by Prithwis(166)

Question 34574This question is from textbook Algebra 2
: 5/(3+i)
In this case the (i) stands for imaginary number.
The answer is (3-i)/2.
I don't know how my teacher came up with the answer.
Thank you so much! Please respond as soon as possible!This question is from textbook Algebra 2

Click here to see answer by stanbon(26259)

Question 34985: The distance d, in feet, a bomb falls in t seconds is given by
How many seconds are required for a bomb released at 21,000 feet to reach its target? (If necessary, round your answer to two decimal places.)

A) 1167.12 seconds

B) 185.76 seconds

C) 92.88 seconds

D) 2972.19 seconds
Click here to see answer by stanbon(26259)

Question 34974: solve the equation. Label solution as real, imaginary, and/or complex.
x^2 - 2x + 5=0
Click here to see answer by Earlsdon(4898)

Question 35307: please help me find the sum by graphing the corresponding vectors. (1-2i) + (3 + i)i dont even know what that means!
Click here to see answer by longjonsilver(2297)

Question 35306: please help me simplify this:
(1 + 5i)^-1
thanks, i really appreciate your help
Click here to see answer by longjonsilver(2297)

Question 35400: Please help me!!! I put one of each so that I can see how these complex numbers work. I just don't get it. Thanks so much for helping.
simplify
(-3+2i)-(5+7i)
and multiply
2i(3-i)
and divide
4i / 3+i

Click here to see answer by narayaba(40)

Question 35811: solve: c^3 + c^2 - 7c - 3 = 0, given root -3
Click here to see answer by stanbon(26259)

Question 36054: Sara's river boat travels downstream 16 miles in 2 hours. It returns the same distance upstream in 3 hours. Find the rate of the boat in still water and the rate of the current. Please explain how to get the answer. Thank you
Click here to see answer by venugopalramana(3286)

Question 36049: The difference between two numbers is 4. Twice the larger number is 11 more than 3 times the smaller number. Find the numbers.
Click here to see answer by venugopalramana(3286)

Question 36251: given the set of ordered pairs {(2,3),(-4,3),(-2,-9),(1,0)} what is the domain and what is the range???
Click here to see answer by Prithwis(166)

Question 36248: write the equasion, in slope intercept form, of the line that passes through the point (-7,3) and is perpendicular to the line y=3x-5
Click here to see answer by checkley71(8405)

Question 35018: write a short summary explaining the differences between a permutationand a combination of 4 things taken 3 at a time.Draw models to ilistrateyour written explanation.
Click here to see answer by Nate(3495)

Question 36318: Find all the fifth roots of (2+i).
Click here to see answer by cininnatus(12)

Question 36509: perform the indicated operation and simplify:

2-i/3+4i
Click here to see answer by benni1013(141)

Question 36600: Express the following as a complex number in the form a + ib:
(3 - i) (5 + 12i)
Click here to see answer by tran3209(100)

Question 36601: Express the following as a complex number in the form a + ib:
(3 - i)*(5 + 12i)
* = divided symbol
Click here to see answer by tran3209(100)

Question 25968: (3-i)(2+2i)
Click here to see answer by tran3209(100)

Question 37223: 1/(x-1)- 1/(x+2)= 1/2
I've been trying to figure this problem out for a while now. Help please!
Click here to see answer by jcmtnez(53)

Question 35674This question is from textbook Intermediate Algebra

: I have to leave my simplified answers as complex numbers in standard form
-3+8i/-2+iThis question is from textbook Intermediate Algebra

Click here to see answer by tran3209(100)

Question 26887: Can you help me solve this equation:
(5 - i)x + 2 -3i=(3 - 2i)x + 3 - i
Click here to see answer by tran3209(100)

Question 37546: Original: 4i^206+5(sqrt(-196))-8i^18
Step 1: simplify Sqrt... 5(sqrt(-196)) = 5(14i) or 70i... Correct???
Result: 4i^206+70i-8i^18
Here is where I am stuck... Can I combine the exponents (ie: 4i^206-8i^18 = -4^224)??? Also, what is the conversion to a 1 or -1 all about.
Please Help!
Click here to see answer by stanbon(26259)

Question 37560: Here's a tough-ey... Imaginary Numbers:
2i+3/4-i + 1-i/4+i
Any Help Is GREATLY Appreciated.
Thank You In Advance.
Click here to see answer by stanbon(26259)

Question 29395: i need some basic rules for the following type of problem set:
(i^0) * (-i^0) = ???
does i^o * i^0 = 1 ???
-i * i = ???
does -i^0 = -1 ???
i^1 * -i^1 = ???
i^2 * -i^2 = ???
-i^1 * i^2 = ???
i^1 * -i^2 = ???
then the set:
i^-1 * i^-2 = ??? ; i^1 * 1^-2 = ??? ; etc.
any resources on this type of factoring would be extremely useful, since i haven't seen this expressed anywhere in the literature as of yet.

this type of factoring might be simple to roger penrose, but it's driving me nuts.
Click here to see answer by stanbon(26259)

Question 37960: (4+i)times (4+i)times (4+i)
Click here to see answer by fractalier(1804)

Question 38047: My teacher has our advanced algebra class taking college algebra tests just for the heck of it.
The problem asks to find a polynomial equation of degree 4 with integral coefficients that has solutions 1+i, 3, 0.
Click here to see answer by fractalier(1804)

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