Questions on Algebra: Complex Numbers answered by real tutors!

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Algebra: Complex Numbers

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Question 174682: how do you simplify the square root of 3 over the square root of 6?
Click here to see answer by Alan3354(6059)

Question 174683: how do you simplify -6+3i divided by 8-9i?
Click here to see answer by stanbon(26259)

Question 174689: how do you find the discriminant of each quadratic equation then state the number and type of solutions of n^2-14n+9=-11n-4-5n^2?
Click here to see answer by jim_thompson5910(13787)

Question 174706: how do you find the discriminant of each quadratic equation then state the number and type of solution of 3r^2+10=-7r-7r^2?
Click here to see answer by Mathtut(3670)

Question 174736: write the expression as a complex number in standord form:
(8-i)-(3+2i)+(-4+6i)
First equate real parts: 8-3 + -4 = 1
and imaginary parts: -i -2i +6i = 3i
So our answer is 1 + 3i
Click here to see answer by Postulio(1)

Question 174740: use the discriminant to determine the number of real solutions of the equation: 3x^2+x-8=0

Click here to see answer by Alan3354(6059)

Question 174739: write the complex number in standard form:
(5-4i)^2
Click here to see answer by Alan3354(6059)

Question 165356: Find the quotient and express the answer in the standard form of a complex number. 2/3i
Click here to see answer by HyperBrain(694)

Question 165356: Find the quotient and express the answer in the standard form of a complex number. 2/3i
Click here to see answer by Alan3354(6059)

Question 175014: write the expression as a complex number in standard form:
(5-4i)^2
Click here to see answer by user_dude2008(715)

Question 175015: plot the number in a complex plane:
4+2i
Click here to see answer by user_dude2008(715)

Question 175168: An infinite geometric series has 1 and 1/5 as its first two terms: 1, 1/5, 1/25, 1/125,... what is the sum, S, of the infinite series?
Click here to see answer by jim_thompson5910(13787)

Question 175172: if y=7.2 when x=10, what is the calue of x when y=20? (y caries inversely as the square of x)
Click here to see answer by Mathtut(3670)

Question 175171: how do i determine whether (c+5) is a factor of (c^4+7c^3+6c^2-18c+10)?
Click here to see answer by Alan3354(6059)

Question 175167: if x is inversely proportional to y, and x=60 when y=0.5, how do i find x when y=12?
Click here to see answer by Alan3354(6059)

Question 175160: If y caries incersely as x, and y=12 when x=6, what is K, the cariation constant?
Click here to see answer by Alan3354(6059)

Question 175170: what is the remainder when d^4+2d^2+5d-10 is divided by d+4?
Click here to see answer by stanbon(26259)

Question 175161: how do I determine whether(y-3) is a factor of (y^4+2y^2-4) using the remainder and factor theorem?
Click here to see answer by stanbon(26259)

Question 175169: How do i determine the remainder when 5w^3-2w+10 is divided by w+3?
Click here to see answer by josmiceli(3003)

Question 175165: What is the quotient of b^3+4b^2-3b+126 over b+7?
Click here to see answer by nycsub_teacher(90)

Question 175162: How do i determine whether (b+4) is a factor of (b^3+3b^2-b+12)?
Click here to see answer by Alan3354(6059)

Question 175497This question is from textbook Algebra 2
: what is the answer with work for
write the expression as a complex number in standard form.
(3+i) + (1-5i)This question is from textbook Algebra 2

Click here to see answer by jim_thompson5910(13787)

Question 175556This question is from textbook
: How do I simplify a complex number that is of Division and Multiplication?This question is from textbook

Click here to see answer by EMStelley(143)

Question 175628: Find the absolute value.
1.) |3-i|
2.) |-2+3i|
Click here to see answer by EMStelley(143)

Question 175628: Find the absolute value.
1.) |3-i|
2.) |-2+3i|
Click here to see answer by jim_thompson5910(13787)

Question 175668This question is from textbook Algebra and Trigonometry

: u+1/1+1/u
________
1/u+1
Okay, it sounds likee, u plus 1 over 1 plus 1 over u. alll of that over (divided by) , 1 over u+1

I can't figure out how to do it.
Thank youuu.This question is from textbook Algebra and Trigonometry

Click here to see answer by solver91311(5072)

Question 175769: If is a solution for , where m and n are real numbers, what is the value of m?
Click here to see answer by stanbon(26259)

Question 175764: Find all the geometric sequences such that the sum of the first two terms is 2 and the sum of the first three terms is 3.
I got this:
a + ar = 2
a + a(+- 1/√a) = 2
I don't know what to do now. Please help!
Click here to see answer by Edwin McCravy(2920)

Question 176226: the subject area is on imaginary numbers. what is i to the power of 359 equal to.
Click here to see answer by stanbon(26259)

Question 176226: the subject area is on imaginary numbers. what is i to the power of 359 equal to.
Click here to see answer by solver91311(5072)

Question 176349: How do you simplify (3+i)^57 ?
Click here to see answer by stanbon(26259)

Question 176400: My math question reads:
If one of the solutions to a quadratic function is 1+i(squareroot2), what is the b value in the quadratic polynomial?
Could you please help me figure out this math problem?
Please and thank you.
Click here to see answer by Mathtut(3670)

Question 176496: how do I simplifiy the fraction -(2x over -xy)?
Click here to see answer by Mathtut(3670)

Question 176697: The imaginary number i is defined such that i^2 = –1. What does i + i^2 + i^3 + .... + i^23 equal? The answer is supposed to be -1, but I thought it should be -i according to another source. Is the answer key wrong?
Click here to see answer by solver91311(5072)

Question 176897: what is the recipical of 7-4i/5
Click here to see answer by Fombitz(2113)

Question 176942: 20-12i=5m+4ni
Click here to see answer by jim_thompson5910(13787)

Question 177505: Give the polar and exponential forms of each of the complex numbers:
a)6-2j
b)-4j
Click here to see answer by solver91311(5072)

Question 177514: Find all the roots of :
a) (x^3) - 1=0
b)(x^5)- 32j=0
Click here to see answer by stanbon(26259)

Question 177575: A quatradic has a zero of -2-3i. what integral factor led to this zero. Having much trouble with these types of questions.
Click here to see answer by Mathtut(3670)

Question 177579This question is from textbook Algebra and Trigonometry: Structure and Method
: I can't really seem to get exactly the correct answer on this problem. Any help would be great!
Simplify:
This question is from textbook Algebra and Trigonometry: Structure and Method

Click here to see answer by Mathtut(3670)

Question 177618: Find all the roots of:
x^5 - 32j=0
Click here to see answer by stanbon(26259)

Question 176499: how do I find the calue of y in the equation 3 over y-2=8?
Click here to see answer by HyperBrain(694)

Question 178320This question is from textbook alebra for college students
: helpThis question is from textbook alebra for college students

Click here to see answer by user_dude2008(715)

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