Questions on Algebra: Complex Numbers answered by real tutors!

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Algebra: Complex Numbers

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Question 116121: 2x squared + 10x = -1
Click here to see answer by jim_thompson5910(13787)

Question 116073: Suppose T is equal to x over y and R is equal to w over z, show that xz plus yw all over yz-xw is equal to t plus r all over one minus tr.
Click here to see answer by Fombitz(2113)

Question 116821: what is square root of 4x squared menus 20x plus 25
and three root of negative 8n to the 12 y to the 9
i don't understand how to even start these
Click here to see answer by solver91311(5072)

Question 117189: I need to write the following expression in terms of i: (4+8i)+(-3-6i)
Can to please help me?
Click here to see answer by jim_thompson5910(13787)

Question 117202: i+i^2+i^3+...+i^49=
Click here to see answer by bucky(1732)

Question 117243: What is (-48 squared timeds by -3 squared)divided by(-2 squared)?
Click here to see answer by edjones(3292)

Question 117426: 1.) What is a polynomial function in standard form of degree 4 with zeros: -1, 2, 5i?
2.) Given f(x)=5x+1
Find f^-1(x) & verify the answer is correct by showing that (fof^-1)(x)=x
3.) solve: a) log (x+4) - log 2x=0
b) 2ln x + 5 = 7
4.) Find all the zeros of the polynomial function: P(x)=2x^4+3x^3+16x^2+27x-18 then write the P(x) as a product of its linear factors.

Click here to see answer by psbhowmick(456)

Question 117516:
I NEED HELP! :]
Click here to see answer by jim_thompson5910(13787)

Question 117932: If 3x^2-2x+7=0, Then (x-1/3)^2=
Click here to see answer by checkley71(8405)

Question 117520:

PLEASE HELP! :]
Click here to see answer by BrittanyM(80)

Question 117519:
I NEED HELP! :]
Click here to see answer by bucky(1732)

Question 118051This question is from textbook Advanced Mathematics - precalculus with discrete mathamatics and data analysis
: Find real numbers of x and y such that :
(2x+y) + (3-5x)i = 1-7iThis question is from textbook Advanced Mathematics - precalculus with discrete mathamatics and data analysis

Click here to see answer by bucky(1732)

Question 118071This question is from textbook Advanced Mathematics - precalculus with discrete mathamatics and data analysis
: find the square roots of 3+4iThis question is from textbook Advanced Mathematics - precalculus with discrete mathamatics and data analysis

Click here to see answer by bucky(1732)

Question 117518:
I NEED HELP! :]
Click here to see answer by Fombitz(2113)

Question 118255: 5/1+i write expression as complex number in standard form
Click here to see answer by stanbon(26259)

Question 118255: 5/1+i write expression as complex number in standard form
Click here to see answer by ankor@dixie-net.com(6691)

Question 118256: write a quadratic function in standard form that goes through the given points (1,3) (2,1) (-2,-15)
Click here to see answer by stanbon(26259)

Question 118256: write a quadratic function in standard form that goes through the given points (1,3) (2,1) (-2,-15)
Click here to see answer by ankor@dixie-net.com(6691)

Question 118467: 3x-5 over x-2 + 6x-13 over x-2 =9
3x=6x=9x
15=13=-18
9x-18 over x-2 ????
Click here to see answer by solver91311(5072)

Question 118661: what is the difference of two squares mean
Click here to see answer by jim_thompson5910(13787)

Question 118662: what is a complex number? what is an imaginary number? and are there any real-world applications associated with complex numbers?
Click here to see answer by stanbon(26259)

Question 119078: Can you help me to solve these
1. Find all zeros, both real and complex, of f(x)=x3-8x2 + 25x - 26 (3 and 2 are exponent) and write the polynomial in factored form.
Click here to see answer by chitra(359)

Question 119571This question is from textbook Algebra and Trigonometry Structure and Method Book 2

: This question is from textbook Algebra and Trigonometry Structure and Method Book 2

Click here to see answer by checkley71(8405)

Question 119571This question is from textbook Algebra and Trigonometry Structure and Method Book 2

: This question is from textbook Algebra and Trigonometry Structure and Method Book 2

Click here to see answer by jim_thompson5910(13787)

Question 119657: 2x + y = 3 with no given numbers
Click here to see answer by jim_thompson5910(13787)

Question 119968: how is 5-3i/5+3i simplified in the form of a + bi?
Click here to see answer by jim_thompson5910(13787)

Question 120006: I am helping with algebraII homework with no textbook. Can you refresh my memory on an exclamation point following a number. i.e. n! and if n is equal to 8 then? 8 * 7 * 6 * 5 or something like that. Please help someone who has been out of this for over 25 years
Click here to see answer by jim_thompson5910(13787)

Question 119938: write in exponential form the 4th root of (16^3 * a^-2)/b^6
so far I got that it has simplified to 16^3/4 * a^-1/2 * b^ 2/3, but I am not sure if the b^2/3 is right.
Click here to see answer by checkley71(8405)

Question 120193: Explain a method for simplifying a complex fraction.

I need an example of a complexed fraction and also need it broken down as to how you got the answer.

Click here to see answer by checkley71(8405)

Question 120317: What is the complex conjugate of -5+2i
Click here to see answer by jim_thompson5910(13787)

Question 120326: Write 8/(1+i) as a complex number in standard form
Click here to see answer by jim_thompson5910(13787)

Question 120331: I need help solving for x in the following problem: 3(cx-b)+c = ax+d/a
The ax+d part is all over a.
I have no idea where to start, but I know proportions can be used?
Click here to see answer by ankor@dixie-net.com(6691)

Question 120432: Hi! May I please have some help with this equation for my homework?
Evaluate the expression and write the result in the form a + bi.
(9 + 8i)/(10 - 10i)
Click here to see answer by jim_thompson5910(13787)

Question 120434: HI! May I get some help with this expression?
Evaluate the expression and write the result in the form a + bi.
(6 + 5i)^-1
Click here to see answer by jim_thompson5910(13787)

Question 120617: May I have some help solving this expression?
Evaluate the expression and write the result in the form a + bi.
(5-sqrt(-25))/(5+sqrt(-25))
Click here to see answer by jim_thompson5910(13787)

Question 120719This question is from textbook Algebra 2

: can you help me solve this problem?

5i(4-2i)This question is from textbook Algebra 2

Click here to see answer by rapaljer(3620)

Question 120860: what is 'i' divided by 'i'? thanks

Click here to see answer by stanbon(26259)

Question 120860: what is 'i' divided by 'i'? thanks

Click here to see answer by checkley71(8405)

Question 121585: -5x + 1> 11
Click here to see answer by jim_thompson5910(13787)

Question 121585: -5x + 1> 11
Click here to see answer by checkley71(8405)

Question 121578This question is from textbook prentice hall mathematics ALGEBRA 2
: i have trouble with solving problems like these and my teacher only gives us the work instead of explaining it.How can i solve these problems to understand and solve in a compatable manor?This question is from textbook prentice hall mathematics ALGEBRA 2

Click here to see answer by solver91311(5072)

Question 121649: use synthetic division to divide: (x^2-4x-2)/[x-(3+2i)]
Click here to see answer by stanbon(26259)

Question 121662: how do you solve (2-5i)^2
Click here to see answer by checkley71(8405)

Question 121693This question is from textbook College Algebra
: Evaluate the expression and write the result in the form a + bi.
((Sqrt 10) - (Sqrt -6))((Sqrt20)- (Sqrt -12)) = ________ + _______i
I need to fill in these blanks to complete the answer. The answer should not comtain a square root. Your help is greatly appreciated! Thank you.This question is from textbook College Algebra

Click here to see answer by jainenderkapoor(60)

Question 121908: I need assistance with the following 3 problems:
Thank you for your help.

(7c)^4(7c)^7

(x^4-5x^2+6)/(x^2-3)

factor by mult
x^9+8x^8
Click here to see answer by jainenderkapoor(60)

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Questions on Algebra: Complex Numbers answered by real tutors!

Tutors Answer Your Questions about Complex Numbers (FREE)

PLEASE HELP! :] Click here to see answer by BrittanyM(80)

PLEASE HELP! :]
Click here to see answer by BrittanyM(80)