Questions on Algebra: Complex Numbers answered by real tutors!

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Question 805488: is it true or false : There are no complex numbers x and y satisfying X^2=Y and Y^2=X other than X=Y=1
Click here to see answer by tommyt3rd(5050)

Question 827926: Please help me solve this equation. Find the quotient of (2-3i) (1+i)
Click here to see answer by MathLover1(20849)

Question 828826: What are the root or imaginary numbers of: (2x-5)^2=25
What I did: 2x-5 = plus or minus the square root of 25
then my final answer was : x = (5 plus or minus the square root of 25)/2
sorry i do not have a plus or minus key nor do i have a square root key
Click here to see answer by jim_thompson5910(35256)

Question 829630: 7 / 3+5i
Click here to see answer by LinnW(1048)

Question 814033: what are the steps to solve the problem 4x^2 -48=0
Click here to see answer by tommyt3rd(5050)

Question 813714: how do i solve this using complex numbers 2x+7+(3-y)i=-4+6i
Click here to see answer by tommyt3rd(5050)

Question 813971: find the result of (x+7i)+(5-yi)
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Question 829978: (3+5i)+(8-6i)
Click here to see answer by LinnW(1048)

Question 830254: Factorials
10!11!
------
9!14!
I understand what a factorial is. I'm just confused as to whether this means "10 factorial times 11 factorial" or not. (no signs)
Also, is there an easier way to do it rather than multiplying the large numbers?
IOW, can I subtract and then multiply the smaller numbers?
(I tried this and get 10/2184, or 0.004579)
Click here to see answer by JulietG(1812)

Question 829566: (7+5i)(7-5i)
Click here to see answer by Fombitz(32388)

Question 830080: Solve 4/-3-6i
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Question 830419: How do I find all of the roots for x to the 4- 6x squared plus 7
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Question 830916: How do i find all complex solutions to the equation x(squared) + 100 = 0
Click here to see answer by Alan3354(69443)

Question 831514: What is square root of -289
Click here to see answer by Fombitz(32388)

Question 831514: What is square root of -289
Click here to see answer by josgarithmetic(39613)

Question 831667: 2(cos pi/12 + i sin pi/12)
in standard form with steps shown
Click here to see answer by stanbon(75887)

Question 831815: find all complex solutions of
Click here to see answer by richwmiller(17219)

Question 831823: find all complex solutions of 4x^2-5x+2=0 (if there is more than one solution, separate them with commas)
Click here to see answer by Edwin McCravy(20054)

Question 831865: What expression is equivalent to (3-2i)^2?
Click here to see answer by Fombitz(32388)

Question 831813: find all complex solutions of 4x^2-5x+2=0 (if there is more than one solution, separate them with commas)
Click here to see answer by Fombitz(32388)

Question 831919: The square root of -16/(3-3i)+(1-2i)
I know that the square rot of -16 is 4i but Idk what to do from there. PLEASE HELP!!
Click here to see answer by stanbon(75887)

Question 831934: Find the number and type of solutions for x^2-9x=-8.
Click here to see answer by stanbon(75887)

Question 831935: Write f(x)=-5x^2-60x-181 in vertex form and identify the vertex.
Click here to see answer by stanbon(75887)

Question 832843: Perform the following calculation to the proper number of sig figs.
(1.20 x 10^8g +9.7 x 10^7g)/(3.04 x 10^5L)
Click here to see answer by LinnW(1048)

Question 831926: Express 8√-84 in terms of i.
Click here to see answer by tommyt3rd(5050)

Question 833224: I do not understand all of the properties such as communitive, distibutive, associative, subtraction, multiplication, divioson, additon. All for multiplicaton and addition. Can someone please give me examples and explain this to me?
Click here to see answer by richwmiller(17219)

Question 814948: how to convert followings into a+bi form
3+2route-1????
Click here to see answer by tommyt3rd(5050)

Question 833337: The cube of 99 is 970299. Consider the smallest two-digit number whose cube ends with the original two-digit number. The sum of the digits of the cube of that two-digit number is:

a) 18 b) 19 c)20 d)21 e)22
Click here to see answer by KMST(5328)

Question 833416: 6i/(3+i)
Click here to see answer by Alan3354(69443)

Question 833528: Is the product of 2 imaginary numbers a real number always, never or sometimes?
Click here to see answer by stanbon(75887)

Question 833527: Is a real number, a complex number always, sometimes or never?

Click here to see answer by Fombitz(32388)

Question 834066: Find the quotient and enter the real and imaginary parts below.
(5+8i)/(3+5i)
it should look something like _=_i
thank you!
Click here to see answer by Edwin McCravy(20054)

Question 834452: (5-2i)(5+2i) please help me solve this peoblem im confused
Click here to see answer by jgr45(31)

Question 834485: (a-bi) (a+bi)

The i's are imaginary, you have to multiply,
Click here to see answer by jim_thompson5910(35256)

Question 816605: Show that (a+ib)(c+id)=x+y
Click here to see answer by tommyt3rd(5050)

Question 834449: (5-2i)(-5+2i) please help me solve this peoblem im confused
Click here to see answer by Fombitz(32388)

Question 833934: Simplify: sqrt(-27x^5)
Click here to see answer by tommyt3rd(5050)

Question 834389: 3x-y+19i=1+(2x+3y)i What does y and x equel?
Click here to see answer by Fombitz(32388)

Question 834770: (2-i)squared into standard form
Click here to see answer by Alan3354(69443)

Question 834865: Let f be a function such that f(x+y) = x + f(y) for any two real numbers x and y. If f(0) = 2, then what is f(2012)?
Click here to see answer by richard1234(7193)

Question 835288: (7+8i)/(6+4i)
Click here to see answer by Alan3354(69443)

Question 835322: 9x^2+4=0
Click here to see answer by Fombitz(32388)

Question 834863: Find all complex numbers z such that z^2 = 2i.
Write your solutions in a+bi form, separated by commas.
Click here to see answer by Fombitz(32388)

Question 835981: Solve the equation by using the complex numbers system. 4x^2+1=3x
Click here to see answer by richard1234(7193)

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