Questions on Algebra: Complex Numbers answered by real tutors!

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Question 288591: Stat the possible number of imaginary zeros of g(x) = x^4 + 3x^3 + 7x^2 - 6x - 13
Click here to see answer by richwmiller(17219)

Question 289161: Use a deductive reasoning to determine a general formula for the following
Pick a number,multiply the number by 10 add 30 divide the sum by 5 and subtract 15 from the quotient
Click here to see answer by Theo(13342)

Question 289304: what is [(1/3)^-2-(-3)^-1]/[(1/2)^-1-(-2)^-2]
Click here to see answer by stanbon(75887)

Question 289509: solve 2x^2 = 3x + 2 by graphing. If exact roots cannot be found, state the consecutive integers between which the root are located.
Click here to see answer by Fombitz(32388)

Question 289505: solve: 2+i divided by 1-3i
Click here to see answer by Fombitz(32388)

Question 289648: 3x^4-y=0 when x=4
Click here to see answer by richwmiller(17219)

Question 289920: One factor of f(x) = x^3 + x^2 - 22x - 40 is x + 4. Find the other factors.
Click here to see answer by richwmiller(17219)

Question 290041: Find the reciprocal of each complex number.
-√5 - i√2
(the "i" is the imaginary number "i")
Thank You!
Click here to see answer by dabanfield(803)

Question 290225: Find all the sixth roots of (12+5i)
Click here to see answer by CharlesG2(834)

Question 291557: solve the following for x by any method find all solutions, real or complex. write your answer in simplest radical form, and in terms of i 6(x-5)(x-5)=42
Click here to see answer by richwmiller(17219)

Question 291722: Explain in your own words (as if you were tutoring another student) on what (f o g)(x) means (in other words, how you find it). You may use an example to explain it such as f(x)=3x+2 and g(x)=5x.
Click here to see answer by richwmiller(17219)

Question 292130: The Sum of (3-the square root of 5) + (2-the square root of 45). We just where introduced to imagnary numbers but i wasnt sure if those symbols came into play here
Click here to see answer by ankor@dixie-net.com(22740)

Question 292264: together, jared's age and his grandfather's age total 100. But jared's grandfather is 70 years older than him. how old is jared's grandfather?
Click here to see answer by richwmiller(17219)

Question 292266: square of -5 + square of -144
solve in terms of i
I really not sure how to even start this problem
Click here to see answer by richwmiller(17219)

Question 292505: What is the additive inverse of -(-2t^2 + 5)?
Click here to see answer by jim_thompson5910(35256)

Question 292309: I need help with this problem:
Solve for w if w-4/3=-x+11/4
I think the -x might be a typo since there is a typo in another problem on the same page.
Thanks,
Carolyn
Click here to see answer by ankor@dixie-net.com(22740)

Question 293139: Please help me solve this equation:
Click here to see answer by richwmiller(17219)

Question 293341: 2t^2-18

Click here to see answer by nerdybill(7384)

Question 293342: x^3-18x^2+81x
9x(x^2-2X+9)
9x(x-3)(x+3)
?
Click here to see answer by Edwin McCravy(20054)

Question 293865: Evaluate: 2^x+4^x=8^x using complex number algebra
Click here to see answer by Alan3354(69443)

Question 294209: Factor -3xy�z + 6x�yz�
Please help, been stuck for hours!
Click here to see answer by Earlsdon(6294)

Question 294209: Factor -3xy�z + 6x�yz�
Please help, been stuck for hours!
Click here to see answer by Edwin McCravy(20054)

Question 294677: Dear sir/Madam,
Please help me to known about DE-MOVIERS THEOREM and i want to know about the definition for de- moviersTheorem
Click here to see answer by richwmiller(17219)

Question 294698: Addition, Subtraction, & Complex Fractions
(6x + 1)/(x^2 - 9) + (4)/(x - 3)
my best attempt is:
([6x + 1]*[x - 3]) * ([x^2 - 9]*[4]) / ([x^2 - 9]*[x - 3])
Click here to see answer by richwmiller(17219)

Question 294703: ([4x]/[x + 1]) + ([5]/[2x - 3]) - ([4]/[x])
no idea what to do.
Click here to see answer by vleith(2983)

Question 294777: (3 + 3i ) divided by (5 + 4i )
Click here to see answer by CharlesG2(834)

Question 294908: How do I solve complex number problems like 6+5i/-2i, 2/7-8i, 3-i/2-i, and 2-4i/1+3i?
Click here to see answer by Fombitz(32388)

Question 294966: divide the complex numbers and write the final answer in the form a+bi
-10+i
______
2+i
I appreciate any help =D
Thank you =D
Click here to see answer by jim_thompson5910(35256)

Question 295283: How many revolution does it take for a 6 inch diameter wheel to travel 15 feet?
Click here to see answer by Alan3354(69443)

Question 295283: How many revolution does it take for a 6 inch diameter wheel to travel 15 feet?
Click here to see answer by nerdybill(7384)

Question 295642: x-2 = 7 + 3

Please explain how to solve this problem. It is only 1 problem. thanks!
Click here to see answer by richwmiller(17219)

Question 295641: x-2=7+3
x2-25x+5x-5

Please explain how to solve this problem. It is only 1 problem. thanks!
Click here to see answer by richwmiller(17219)

Question 295653: Find all real solutions of the given equation. x+x^1/2-20=0
Click here to see answer by richwmiller(17219)

Question 295653: Find all real solutions of the given equation. x+x^1/2-20=0
Click here to see answer by Alan3354(69443)

Question 295656: solve: 1/y^2+5/y+3=0
Click here to see answer by Alan3354(69443)

Question 295664: solve by completingthe square
3x^2-8x+2=0
Click here to see answer by Fombitz(32388)

Question 295661: solve: (z-4/3)^2=1/8
Click here to see answer by Alan3354(69443)

Question 295781: Please could you help me solve this equation: Find a complex number (z=x+iy)which satisfies the equation (the second z has a conjugate sign above it)
Click here to see answer by Fombitz(32388)

Question 295815: The complex number 2+i is a root of z^3-z^2-pz+15=0, where p is real. Explain why 2-i is another root and find the third root.
Click here to see answer by stanbon(75887)

Question 295815: The complex number 2+i is a root of z^3-z^2-pz+15=0, where p is real. Explain why 2-i is another root and find the third root.
Click here to see answer by richwmiller(17219)

Question 295818: The complex number 2+i is a root of , where p is real. Explain why 2-i is another root and find the third root.
Click here to see answer by solver91311(24713)

Question 296028: Express in the form a+bi
Click here to see answer by Alan3354(69443)

Question 296376: the length of a rectangle is fixed at 15 cm. what widths will make the perimeter greater than 92cm?
Click here to see answer by stanbon(75887)

Question 277702: a) Find all the sixth roots of (12+5i).
b) Differentiate log(3x + 7) w.r.t.
Question 2: (5 Marks)
a) Find the equation of the line joining the points
(─7, 6, ─ 3) and (7, ─ 6, 3).
b) Find the equation of the sphere, which contains the circle
x2 + y2 + z2 = 18 , 3x + 3y + 3z = 11 and passes through the origin.
Question 3: (5 Marks)
a) Find the area bounded by the x-axis, the curve y = e2x and the ordinates x = 2 and x = 3. b) Prove that tan-1 x < x for all x > 0
(Using mean value theorem on {o,x} for tan-1x)
Question 4: (5 Marks)
a) Using Simpson�s rule to evaluate the following, taking n = 4

b) Find the area of the region included between the circle:
x2 + y2 + 2 x + 10y + 27 = 0
and the parabola
y2 + 10y � x + 23 = 0
Question 5:

(a) Evaluate the following: (3 Marks)
(i) dx
(ii)
(iii) dx

(b) Prove the following inequalities: (2 Marks)
(i) for all positive x.
(ii) for all x > 0.

Click here to see answer by amit.lathiya(2)

Question 297082: Please help me solve this equation: 2+6i \ 3-3i
Click here to see answer by jim_thompson5910(35256)

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