Questions on Algebra: Complex Numbers answered by real tutors!

Algebra ->  Complex Numbers Imaginary Numbers Solvers and Lesson  -> Lesson -> Questions on Algebra: Complex Numbers answered by real tutors!      Log On


   



Tutors Answer Your Questions about Complex Numbers (FREE)


Question 548088: Good Evening ,
I honestly didn't know what category this problem would be under. The problem is asking me to solve by elemination. The problem is 4x-3y=11
3x-5y=-11
both equations are suppose to be under the other one and its one problem not two.
Thank you for your time (:

Click here to see answer by Maths68(1474) About Me 

Question 548502: 63x^6-27x^3+45x/9x
Click here to see answer by mananth(16946) About Me 

Question 548700: solve the equation 2x^2-3x+3=0 and give your answer in simplest a+bi form
i need help with this question. ive tried quadratic equation and got to 3+- square root of -15 over 4 but i dont know if that is correct. please help!

Click here to see answer by edjones(8007) About Me 

Question 548835: (-3i)(3i)-(2+2i)
Click here to see answer by mananth(16946) About Me 

Question 548950: How do I solve z^2(1-z^2)=16?
Click here to see answer by stanbon(75887) About Me 

Question 549122: Perform the indicated operation
(6+3i)+(2-8i) is the answer 8-5i?
Then i dont understand -3(4+3i)-(-9+3i)

Click here to see answer by stanbon(75887) About Me 

Question 549143: Can you please help me solve this 15-5i^2+3i^32
Click here to see answer by stanbon(75887) About Me 

Question 548737: I need to find all zeros
13x^3-185x^2+608x-580

Click here to see answer by KMST(5328) About Me 

Question 549291: what is the polynomial of least degree that includes the zeroes -5, 1+3i, 1-3i?
Click here to see answer by stanbon(75887) About Me 

Question 549307: Factor. 125q^3 + 64r^3
Click here to see answer by mananth(16946) About Me 

Question 549318: Solve. x^4-9x^2+20=0
Click here to see answer by solver91311(24713) About Me 

Question 549314: Find all zeros of g(x)=x^3+3x^2-50x+36 given that -9 is a zero. (No Decimals!)

Click here to see answer by Alan3354(69443) About Me 

Question 549316: Find all zeros of h(x)= x³ - 9x² + 19x - 35.
Click here to see answer by Edwin McCravy(20056) About Me 

Question 549317: find all of the zeros of j(x)= 7-12x
Click here to see answer by Alan3354(69443) About Me 

Question 549677: What is the proof of the quadratic formula?
I have only been able to subract c and divide the equation by a?

Click here to see answer by Edwin McCravy(20056) About Me 

Question 550125: The equation x^3 +3xy + y^3 = 1 is solved in integers. Find the possible values of
x - y

Click here to see answer by Alan3354(69443) About Me 

Question 550675:
Click here to see answer by user_dude2008(1862) About Me 

Question 550679: Simplify
2i + 5
______

3i - 4
to the form ai + b.




Express z = -2 -5i in polar form.



Express z = 3 + 5i in exponential form.


Use De Moivre's Theorem to express cos4 0 as powers of cos0.

Click here to see answer by Alan3354(69443) About Me 

Question 550920: solve system by substitution
-5x-y=-11
-6x+y=-22

Click here to see answer by icefreezer7(1) About Me 

Question 551246: which of the following sets of numbers includes only prime numbers
47, 91
43, 79
57, 97
51, 73
3.5x10-2

Click here to see answer by richard1234(7193) About Me 

Question 551243: i need help with -3x(4-7)
Click here to see answer by MsRedz123(24) About Me 

Question 550956: here is my query...
Let a(x); b(x) and c(x) be polynomials with complex coeffcients such that
gcd(a(x); b(x); c(x)) = 1
(i.e. no polynomial of degree >= 1 divides all the three) and deg(a).deg(b).deg(c) =0
0. Prove that,
a(x)
^n + b(x)
^n != c(x)
^n
for all n >= 3

(!= => "not equal to")

Click here to see answer by richard1234(7193) About Me 

Question 551395: express your answer in simplest a+bi form:
x^2 + 8x + 25 =0

Click here to see answer by Earlsdon(6294) About Me 

Question 551340: what is the multiplicative inverse of 4+5i/1+i
Click here to see answer by Theo(13342) About Me 

Question 551480: x(to the 4th power)-6x(squared)-27=0. whats the answer?
Click here to see answer by josmiceli(19441) About Me 
Question 551480: x(to the 4th power)-6x(squared)-27=0. whats the answer?
Click here to see answer by KMST(5328) About Me 

Question 551692: can you PLEASE!!! help me solve (5-6i)(1-i) thankyou :)
Click here to see answer by jim_thompson5910(35256) About Me 

Question 552603: i(2+7i)(2-7i) write in standard form

Click here to see answer by AnlytcPhil(1806) About Me 

Question 552755: Simplify: (5i)(-4i)-8(-1+8i)
Click here to see answer by jim_thompson5910(35256) About Me 

Question 552758: Simplify: -4(-6+3i)-7(-7+5i)
Click here to see answer by jim_thompson5910(35256) About Me 

Question 552710: g(x)=2x^2-5 g(3)
Do you square the 3 and then multiply by 2?

Click here to see answer by jim_thompson5910(35256) About Me 

Question 552761: Simplify: (-7i)-(4i)-(5-6i)
Click here to see answer by jim_thompson5910(35256) About Me 

Question 552545: Express in terms of i. -sqrt-50
Click here to see answer by jim_thompson5910(35256) About Me 

Question 553408: The Question is:
Given a Quadratic equation with rational coefficients with a root of 6+5i
a) What is another root to this equation?
b) What are the factors of the equation?
c) What is the quadratic equation with the given root?
d) What is the representative function?
I know this is long but i tried and my teacher took up my references to grade them, and I don't remember any of the rules. I think answer a is 6-5i. Can you please help? This is a very important grade and I have no room for mistakes. Thank You for any help :)

Click here to see answer by jim_thompson5910(35256) About Me 

Question 553467: Simplify
4- squareroot3/
2-squareroot3
rationalize the denominator

Click here to see answer by mathstutor494(120) About Me 

Question 553871: what is the value of b if (4+ or - i) are complex roots of 2x squared+bx+15=0
Click here to see answer by prateekagrawal(56) About Me 

Question 554024: express the following in the form x+iy
3+2i/2-3i

Click here to see answer by Alan3354(69443) About Me 

Question 554032: (2+i)(1+2i)/3+4i
express in the form of x+iy

Click here to see answer by Alan3354(69443) About Me 

Question 554019: 21-20i find square root of complex no.
Click here to see answer by Alan3354(69443) About Me 

Question 554247: Find the maximum value of the function: -4(x-3)(x+2)
Click here to see answer by stanbon(75887) About Me 

Question 554423: how to solve:
Rationalize
5/1 + i

Click here to see answer by KMST(5328) About Me 

Question 554570: Square root of -3

Click here to see answer by jim_thompson5910(35256) About Me 

Question 554326: how would i solve equations over complex numbers? for example, x^2-2x+2=0
Click here to see answer by jim_thompson5910(35256) About Me 

Question 554697: (6+2i) + (5-i)
Click here to see answer by jim_thompson5910(35256) About Me 

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