Questions on Algebra: Complex Numbers answered by real tutors!

Tutors Answer Your Questions about Complex Numbers (FREE)

Question 848508: 2-2=

Click here to see answer by Alan3354(69443)

Question 848756: √-6 times √-24 in simplest form
Click here to see answer by harpazo(655)

Question 849597: REINFORCE Find two complex numbers that have a sum of 10i, a difference of -4, and a product of -29
Click here to see answer by josgarithmetic(39617)

Question 849940: how to solve 3y+4x
Click here to see answer by Alan3354(69443)

Question 850136: what is the solution of square root of (1+square root of 3)

Click here to see answer by checkley79(3341)

Question 850464: how would you solve -i+(8-2i)-(5-9i)
Click here to see answer by harpazo(655)

Question 850587: FInd the cube roots of -8i (Answers may be left in trigonometric form). Having trouble solving this
Click here to see answer by stanbon(75887)

Question 852092: Simplify the expression. Write complex numbers in standard form
(3-7i)/4i
It's a fraction bar :)
Thanks

Click here to see answer by Fombitz(32388)

Question 852151: 3/5 = x/6x+4 - 4/9x+6

Click here to see answer by Fombitz(32388)

Question 852655: what is the limit of [-4(x-5)(x+2)]/[-x(x+2)] as x approaches to infinity.
Click here to see answer by Edwin McCravy(20056)

Question 852658: 9.lim┬(x→∞)⁡〖2/(2(8x-20))〗
Click here to see answer by ewatrrr(24785)

Question 852657: 〖10.lim┬(x→∞)〗⁡〖-(4(x-5)(x+2))/(-x(x+2))〗
Click here to see answer by ewatrrr(24785)

Question 852659: 8.lim┬(x→4)⁡〖(6(-x^3+2))/(-8(x^3+2)(10x^4-11x^2+3))〗
Click here to see answer by ewatrrr(24785)

Question 852727: The question must be answered in trigonometric form:
4i / (-1+ sqrt(3)i)
Thank you!
Click here to see answer by Edwin McCravy(20056)

Question 852772: Hi, I know how to do it if it is like: x^3+x^2+x+2 but not in this way:
Find the complex zeros of each polinomial function. Write f in factored form.
f(x)= x^4+5x^2+4
Show me the work please. Thanks
Click here to see answer by josmiceli(19441)

Question 852792: Find the complex zeros of each polynomial function. Write f in factored form.
f(x)= x^4-1
Click here to see answer by ewatrrr(24785)

Question 852791: Find the complex zeros of each polinomial function. Write f in factored form.
f(x)= x^3-1
Click here to see answer by ewatrrr(24785)

Question 852978: What's the result of this? 2i * 7+6i=?
Is it: 14i+6? Why? Shouldn't it be: 7+12i^2 ?
Thanks
Click here to see answer by Alan3354(69443)

Question 853003: Hi. Use the given zero to find the remaining zeros of each function.
h(x)=x^4-9x^3+21x^2+21x-130 Zero: 3-2i
So I know that we have 2 zeros now: (x-(3-2i)(x-(3+2i). But how can I proceed? I don't know how to divide the product of those zeros in a synthetic division.
Many thanks
Click here to see answer by ewatrrr(24785)

Question 853014: -12 + 15i
Click here to see answer by Alan3354(69443)

Question 853012: (3-√-9)(2+√-25)
Click here to see answer by ewatrrr(24785)

Question 853804: I have a Problem with complex Numbers
suppose we have a complex Number Z=x+iy
how shall we find it from Equation like this

Z*Z+(1+i)*Z+(5-i4)=0.
Click here to see answer by Edwin McCravy(20056)

Question 854326: factor x3+27
Click here to see answer by Alan3354(69443)

Question 854677: Please help me with this question
1/q + 1/r = 1/h
H =
Click here to see answer by josmiceli(19441)

Question 854679: Please help me with this question
A and B agreed to share the the cost of an 8 sliced, $18 pizza based on how much each would eat. B ate 2/3 more than A. How much should each pay?
A =
B =
Click here to see answer by josmiceli(19441)

Question 855922: When plotting 8-9i on complex plane, how do you need to move?
Click here to see answer by jim_thompson5910(35256)

Question 856121: Which of the following equations best describes a square root function that is reflected across the x-axis and has a vertex of (-4, 2) ?
Click here to see answer by Fombitz(32388)

Question 856143:
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Question 856612: (3+6i)^2 / 2i
Click here to see answer by Fombitz(32388)

Question 857211: Please help me solve this problem:
Find all complex square roots of i. in other words find all complex solutions of x^2 = i
Click here to see answer by josgarithmetic(39617)

Question 857443: please help me simplify the expression: cube root(2)+1/cube root(4)
Click here to see answer by rothauserc(4718)

Question 857463: I don't understand how to write complex numbers with imaginary numbers in standard form.
Click here to see answer by Fombitz(32388)

Question 858175: I am struggling to find the complex solutions of
I am assuming that i has a value of 0, I'm not sure how to go about this.
Click here to see answer by Alan3354(69443)

Question 858175: I am struggling to find the complex solutions of
I am assuming that i has a value of 0, I'm not sure how to go about this.
Click here to see answer by harpazo(655)

Question 858564: How many degrees are there in the clock at 4:3o oclock?
Click here to see answer by Alan3354(69443)

Question 858570: how many degrees are there in the clock at 4 oiclock?

Click here to see answer by JulietG(1812)

Question 859192: find real numbers of x and y such that: (x+yi)(2+i) = 2x- (y+1)i
Click here to see answer by DrBeeee(684)

Question 859448: The question says: Solve the equation in the complex number system.
x^3 - 27 = 0
I'm not sure whether to factor or use quadratic equation.
Click here to see answer by ewatrrr(24785)

Question 859482: Hello,
I have tried this problem several times and have gotten a wrong answer. Can you help? I would appreciate it.
3a-3/6=4a+1/15+2
Multiply both sides by 30. The result...
90a-90/6=120a+30/15 + 60
Simplify
5(15a-15)=2(8a+2)+60
I am lost from this point. Thank you for any help you can give me.
Tina

Click here to see answer by josgarithmetic(39617)

Question 860144: (4-3i)(2-I)
Click here to see answer by Fombitz(32388)

Question 860247: squareroot of -3 mulitply squareroot of -2
Click here to see answer by Fombitz(32388)

Question 845708: -5+3x-4x=-4
Click here to see answer by tommyt3rd(5050)

Question 838223: |2x + 4| < 6
Solve for real number x in interval notation
Click here to see answer by tommyt3rd(5050)

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