Questions on Algebra: Complex Numbers answered by real tutors!

Tutors Answer Your Questions about Complex Numbers (FREE)

Question 389874: please solve algebraically for x:
square root (3x+1)+1=x
Click here to see answer by robertb(4012)

Question 391522: How do solve (x^2/3) +1 = 9?
(x^2/3)+1-1 = 9-1
(x^2/3) = 8^1
(x^2/3*3) = 9^1*3
x^2 =9^3
square x^2 = square 729
x=27
Click here to see answer by MathGenius101(2)

Question 391571: It says here to write the expression as a complex number in standard form. The problem is 4i over -6-11i. I've tried doing the opposite on the bottom, 6+11i to cancel it out, but that's when i get stuck. Please help me!
Click here to see answer by Alan3354(30959)

Question 391576: what is the smallest positive value for X such that 180X is a perfect cube?

Click here to see answer by robertb(4012)

Question 391737: Find ∫(x^5+1)dx
Thank you so much for all of your help!!!!!
God Bless!!!!!!!
Click here to see answer by stanbon(57219)

Question 391737: Find ∫(x^5+1)dx
Thank you so much for all of your help!!!!!
God Bless!!!!!!!
Click here to see answer by richard1234(5390)

Question 392293: how do you solve/simplify
i to the 34th power?
~thanks!
Click here to see answer by Alan3354(30959)

Question 392339: (8x+5)*this is squared*=63
how do you solve this?
Click here to see answer by NancyLam(35)

Question 392437: I need help on how to do find the answer to this problem (5-3i)(1-2i)
Click here to see answer by stanbon(57219)

Question 392813: please help me solve this equation!!!! PLEASE!
2x squared-18 and 5x cubed + 30x squared + 45x
Click here to see answer by solver91311(16868)

Question 392989: How do I solve the equation "r^2=the square root of -624"?
Click here to see answer by richard1234(5390)

Question 393110: factor out the greatest common factor, simplify the factors, if possible.
3x(5x-2)-5(5x-2)
A. (15x-5)(x-2)
B. (3x+5)(5x+2)
C. (15x+5)(x+2)
D. (3x-5)(5x-2)
Click here to see answer by ewatrrr(10682)

Question 393445: m^7+m^9=??? its telling me to factor out the greatest common factor

Click here to see answer by rfer(12644)

Question 393451: 3n^3+12^n^2-36^n=??? factor each polynomial as completely as possible
Click here to see answer by edjones(7569)

Question 393497: y^4z^2, y^6z^8,z^9=? what is the greatest common factor in all these i got y^2 for some reason
Click here to see answer by Alan3354(30959)

Question 393616: y^4z^2, y^6z^8,z^9=? what is the greatest common factor in all these i got y^2 for some reason
Click here to see answer by robertb(4012)

Question 394152: How do you rewrite each quotient in the form a+bi? 2 ----- 3+i

Click here to see answer by Edwin McCravy(8879)

Question 394183: the expression i^42 is equivalent to?
Click here to see answer by Edwin McCravy(8879)

Question 394183: the expression i^42 is equivalent to?
Click here to see answer by CharlesG2(828)

Question 394194: Hello. My son is struggling with complex numbers and this stuff is like a second language to me. Any help is greatly appreciated. Thanks.
1) 4i^5-6i^4+3i^3-9i^2
2) 3i^4-(2i-6)-5i^2+(2+12i)
3) (4i-5)*(5i-4)
4) (5i+8)/(3i)
5) (11-3i)/(4+5i)
Click here to see answer by stanbon(57219)

Question 394198: Absolute Value of complex numbers
Solve the following:
1) If z=3-4i then |z|=
2) If z=8-sqrt(39i) then |z|=
Any help is very much appreciated!
Click here to see answer by stanbon(57219)

Question 394197: Hi, I'm having trouble with these two complex numbers problems:
Directions: Without using a graph, find the endpoint of the vector that satisfies the following questions.
1. (-2-i)+(8-5i)
2. (3+7i)-(8+2i)
Click here to see answer by stanbon(57219)

Question 394199: Use a graph to demonstrate the operation of these complex numbers:
1) (7-6i)+(-5-2i)
2) (5-9i)-(-3-12i)
I have a test on these tomorrow so thank you for any help.
Click here to see answer by stanbon(57219)

Question 394195: solve for x to the nearest thousandth e^0.5x=8
Click here to see answer by josmiceli(9649)

Question 394201: Choose the correct quadrant to use in this conversion from standard to trigonometric form:
1) 6-11i
I am having a very difficult time understanding this question. Any help is greatly appreciated.
Click here to see answer by josmiceli(9649)

Question 394202: For the complex number 5+6i find the value of θ (theta) in the trigonometric form (answer to the nearest hundredth of a degree).
I have a test on complex numbers tomorrow and this kind of problem will be on it. I don't understand it at all, so thank you for any help on this.

Click here to see answer by CharlesG2(828)

Question 394334: how do you solve 0.04x + 0.2 - 0.4x = 0.38D, I have several others to answer too, please tell me how to do so I can finish my homework
Click here to see answer by ankor@dixie-net.com(15624)

Question 394389: How do you insert grouping symbols in this equation true? 8+ 25 x 2 divided by 6=11
Click here to see answer by ankor@dixie-net.com(15624)

Question 395063: Find all complex solutions of
2x^2-x+6=0
Click here to see answer by stanbon(57219)

Question 393953: (2-3i)^2 - [(5-3i)(5+3i)]
Click here to see answer by robertb(4012)

Question 395529: Can you help me rewrite this equation in quadratic form?
(x-(2+i))(x-(2-i))= 0
Click here to see answer by stanbon(57219)

Question 395529: Can you help me rewrite this equation in quadratic form?
(x-(2+i))(x-(2-i))= 0
Click here to see answer by richard1234(5390)

Question 395693: find the exact roots for the following: x^3-8x^2+4x+48
Click here to see answer by ewatrrr(10682)

Question 395837: Hello, I a having a hard time with this complex numbers problem. Any help is greatly appreciated!
The point (-4+bi)has been plotted on the complex plane ad r=8. If 0°≤θ≤180° find the value of b. Leave your answer as a radical.
θ= Theta
Click here to see answer by jim_thompson5910(28476)

Question 395851: What is the product of the complex numbers (3+i) and (3-i)?
A) 8
B) 10
C) 9-i
D) 10-6i
Click here to see answer by Edwin McCravy(8879)

Question 395851: What is the product of the complex numbers (3+i) and (3-i)?
A) 8
B) 10
C) 9-i
D) 10-6i
Click here to see answer by stanbon(57219)

Question 395846: If i=sqrt(-1), what is the value of i^4?
Any help is greatly appreciated!
Click here to see answer by Earlsdon(6287)

Question 395849: If i=sqrt(-1), then 4i(6i)
A) 48
B) 24
C) -24
d) -48

Click here to see answer by jim_thompson5910(28476)

Question 395841: Hi, I have a big test on complex numbers tomorrow and I am having a very hard time with this particular question:
Directions: On a complex plane, a point z has been graphed. your
If cosθ=(-8)/(22) and (π)/(2)≤θ≤π:
a) Find z in standard form.
b) Find z in trigonometric form. (Use whole degrees)
θ= Theta
π= pi
Click here to see answer by josmiceli(9649)

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