Questions on Algebra: Complex Numbers answered by real tutors!

Tutors Answer Your Questions about Complex Numbers (FREE)

Question 349906: k=8k+28

Click here to see answer by Alan3354(69443)

Question 349906: k=8k+28

Click here to see answer by rfer(16322)

Question 349900: 2x+48=10x

Click here to see answer by rfer(16322)

Question 350091: i want the aswer for this how do i do it ?

-3<2x-5<7

Click here to see answer by mananth(16946)

Question 350239: (5-3mi)+(2p+9i)=11+3i
determine the values of "m" and "p"
thanks to anyone with help on this one, im really stuck...
Click here to see answer by jim_thompson5910(35256)

Question 350598: 6 root -1
Click here to see answer by Alan3354(69443)

Question 350597: I need a correction to my answer
the problem is (4+6i)(3+2i)+4i - (1+i)/(3-2i)
my answer was (343i-1)/13
Click here to see answer by CharlesG2(834)

Question 350605: 3 roots 2i-2
Click here to see answer by CharlesG2(834)

Question 350603: show that all soluation to the equation sin z = 1000 are given by
z= ( n + 1/2 ) 180 + i 7.601

with clear languages .. the usuall simpols
Click here to see answer by Fombitz(32388)

Question 351294: find the Chochy -Riemann equation in polar coordinate , and use these results to show u(r,angle ) and v( r,angle ) satisfy laplace's equation in polar coordinates?
with explain plz.. simple languages and usuall simpoles
Click here to see answer by solver91311(24713)

Question 351402: Here is the expression and answer, I have tried to solve this but I cannot come up with the same answer that was given to me from the teacher. I need to write this in standard form. The answer given was 12-13i
(5-7i) - (-7+6i)
Click here to see answer by jim_thompson5910(35256)

Question 351602: If log(x)+log(x+3)=1, then the solution is:
Click here to see answer by Fombitz(32388)

Question 351605: In the system of equations: 3x-y=4, 3x+2y=-5, what is the value of x?
Click here to see answer by Fombitz(32388)

Question 351593: (4,1),(-5,2),(-3,2),(5,3),(3,-4)}

Click here to see answer by Fombitz(32388)

Question 351607: The equation of the line through (9,8) and (3,6) is:
Click here to see answer by Alan3354(69443)

Question 351606: What are the values of x for which (2x-5)(x+3)<0?
Click here to see answer by ewatrrr(24785)

Question 351316: 3+5i........5-5i 4-5i
------ and ---- + ----
9-2i........1+5i 1+5i
I have been able to solve these problems in the form of a + bi but when it comes to fractions and dividing I am lost. Please help! Thank you so much!
Click here to see answer by ankor@dixie-net.com(22740)

Question 351313: show that the following function ( the real part of f(z))are harmonic and find its corresponding v( x,y ) :

e^x *( cos y ) ,

ln (squar x + squar y ) ,

y /squar ( 1 - x ) squar y

what hamonic is mean mathematiclly ?
plz explain>>>
thanks

Click here to see answer by Fombitz(32388)

Question 351895: what does constant mean? Salami and More Deli sells a 5 foot submarine sandwich for parties. It weighs 8 pounds. Assuming that the weight per foot is constant, what would be the length of a 12-pound sandwich?
Click here to see answer by ankor@dixie-net.com(22740)

Question 352455: Good evening, I'm new to complex numbers and think I've figured it out. Please let me know if I am properly handling the complex numbers in the following equation:

=
=

Thank you for your time and expertise!
Click here to see answer by jrfrunner(365)

Question 352760: what is the prime factor of 130
Click here to see answer by sofiyac(983)

Question 353044: (2+i)(3-i)(2-3i)
i=imaginary unit
I know we're supposed to do FOIL, but in what order?
Click here to see answer by solver91311(24713)

Question 353044: (2+i)(3-i)(2-3i)
i=imaginary unit
I know we're supposed to do FOIL, but in what order?
Click here to see answer by robertb(5830)

Question 353340: 1+√(−8)
Click here to see answer by edjones(8007)

Question 353456: write an equation for
adult tickets to a play cost $5 and kids tickets cost $2. if 295 tickets wer sold and a total of $950 was collected how many students tickets were sold?
Click here to see answer by stanbon(75887)

Question 353781: I need help in solving an equation with an extraneous solution
4/x+3/x-3=x/x-3-1/3
Click here to see answer by solver91311(24713)

Question 354078: hello every one >>
may i know if there is any one could solve my question ??
are they so difficult ??
thanks for all
Click here to see answer by mananth(16946)

Question 354377: (4)/(x^2-4)+(2x)/(x-2)+2/(x+2)=0
Click here to see answer by stanbon(75887)

Question 354382: -3i-x+(2i)^4=3+2i/2-i
x=all complex numbers
Solve for x
Thank You in advance!!!
Click here to see answer by stanbon(75887)

Question 354883: Identify all the real roots of each equation.

I don't know what to do in this problem.
Click here to see answer by agentc0re(3)

Question 354955: 2p^2=6p-20
Click here to see answer by robertb(5830)

Question 354980: x^3=1

What are all real and complex solutions. I have the answer in my book but I don't understand where it came from.
Click here to see answer by jim_thompson5910(35256)

Question 355001: How do you solve: (32^-1/3)^-3/5?
It is dealing with negative exponents that happen to be fractions. I know that it is probably very simple, but I am just drawing a blank.
I don't want to know how to put this into the calculator, I want to be able to work it out.
Thanks - Taylor
Click here to see answer by stanbon(75887)

Question 355616: show that the integration of ( cos3x / (x^2 + 1 )^2 ) = 2pi / e^3
would any one help >>??
.

Click here to see answer by robertb(5830)

Question 355686: How do you simplify (4x^3 + 5x +13) + (-4x^2 + 22)
Click here to see answer by vleith(2983)

Question 355637: hi ..devnull@algebra.com
i can't see the solution of the question 355616>>
show that the integration of ( cos3x / (x^2 + 1 )^2 ) = 2pi / e^3

would u please send me the like of the answer..
thanks a lot ..

Click here to see answer by Fombitz(32388)

Question 355691: How do you simplify (3x^2-8x-2)-(11x^2+5x+4)
Click here to see answer by Fombitz(32388)

Question 354938: x^2+4x=?
Click here to see answer by nyc_function(2741)

Question 355875: show that the integration from ( 0 to infinity ) for ( cos 3x / ( x^2+1)^2 )= 2pi/e^3

please .. help .. with steps of solution

Click here to see answer by Fombitz(32388)

Question 356361: how can i solve this problem (4+isquare root of 5)time(2-isquare root of 2)
Click here to see answer by edjones(8007)

Question 356683: what is the best way to help me understand the concept of (i)? i have a terrible teacher and am trying to grasp this concept but it's tricky.
Click here to see answer by edjones(8007)

Question 356723: Simplify
√-90 √-15

Click here to see answer by wild_rose(3)

Question 356723: Simplify
√-90 √-15

Click here to see answer by robertb(5830)

Question 356745: is it so difficult the questions that i asked ??
or theres no one on line to solve ..??
i need the answer very soon.. pleeez
there is no time ..
any one could help ..
i need the steps of solution ..
thanks to any one help
Click here to see answer by Fombitz(32388)

Question 356769: Solve by completing the square
15x2-14x-8=0
Click here to see answer by Fombitz(32388)

Older solutions: 1..45, 46..90, 91..135, 136..180, 181..225, 226..270, 271..315, 316..360, 361..405, 406..450, 451..495, 496..540, 541..585, 586..630, 631..675, 676..720, 721..765, 766..810, 811..855, 856..900, 901..945, 946..990, 991..1035, 1036..1080, 1081..1125, 1126..1170, 1171..1215, 1216..1260, 1261..1305, 1306..1350, 1351..1395, 1396..1440, 1441..1485, 1486..1530, 1531..1575, 1576..1620, 1621..1665, 1666..1710, 1711..1755, 1756..1800, 1801..1845, 1846..1890, 1891..1935, 1936..1980, 1981..2025, 2026..2070, 2071..2115, 2116..2160, 2161..2205, 2206..2250, 2251..2295, 2296..2340, 2341..2385, 2386..2430, 2431..2475, 2476..2520, 2521..2565, 2566..2610, 2611..2655, 2656..2700, 2701..2745, 2746..2790, 2791..2835, 2836..2880, 2881..2925, 2926..2970, 2971..3015, 3016..3060, 3061..3105, 3106..3150, 3151..3195, 3196..3240, 3241..3285, 3286..3330, 3331..3375, 3376..3420, 3421..3465, 3466..3510, 3511..3555, 3556..3600, 3601..3645, 3646..3690, 3691..3735, 3736..3780, 3781..3825, 3826..3870, 3871..3915, 3916..3960, 3961..4005, 4006..4050, 4051..4095, 4096..4140, 4141..4185, 4186..4230, 4231..4275, 4276..4320, 4321..4365, 4366..4410, 4411..4455, 4456..4500, 4501..4545, 4546..4590, 4591..4635, 4636..4680, 4681..4725, 4726..4770, 4771..4815, 4816..4860, 4861..4905, 4906..4950, 4951..4995, 4996..5040, 5041..5085, 5086..5130, 5131..5175, 5176..5220, 5221..5265, 5266..5310, 5311..5355, 5356..5400, 5401..5445, 5446..5490, 5491..5535, 5536..5580, 5581..5625, 5626..5670, 5671..5715, 5716..5760, 5761..5805, 5806..5850, 5851..5895, 5896..5940, 5941..5985, 5986..6030, 6031..6075, 6076..6120, 6121..6165, 6166..6210, 6211..6255, 6256..6300, 6301..6345, 6346..6390, 6391..6435, 6436..6480, 6481..6525, 6526..6570, 6571..6615, 6616..6660, 6661..6705, 6706..6750, 6751..6795, 6796..6840, 6841..6885, 6886..6930, 6931..6975, 6976..7020, 7021..7065, 7066..7110, 7111..7155, 7156..7200, 7201..7245, 7246..7290, 7291..7335, 7336..7380