Questions on Algebra: Complex Numbers answered by real tutors!

Tutors Answer Your Questions about Complex Numbers (FREE)

Question 229592: (3-2i)+(7-4i)
Click here to see answer by stanbon(75887)

Question 229620: write the complex number in standard form:
-4i^2+2i
Click here to see answer by Alan3354(69443)

Question 229691: write MN(line above) as a sum of unit vectors for M(-1,3,-2)and N(-7,5,1)
Click here to see answer by Edwin McCravy(20056)

Question 229868: i need the ansures to or some one to explain alebra 2 to me i really suck at it can somone help me
Click here to see answer by ly12603(44)

Question 229855: (6-4i)-(3-5i)
please show the work
Click here to see answer by ankor@dixie-net.com(22740)

Question 229997: (3-2i)(2+4i)
please show work
Click here to see answer by Alan3354(69443)

Question 230168: i^37
plese explain how to get the answer thank you
Click here to see answer by Alan3354(69443)

Question 230169: (6-sqrt(-9)-(-3-sqrt(-25)
sqrt is for the square root sign. How do you solve this equation please explain and show work
Click here to see answer by Alan3354(69443)

Question 230171: (4-7i)(4+7i)
please solve and show work thank you
Click here to see answer by Alan3354(69443)

Question 230237: Find a complex number a+bi such that radical i is equal to a+bi.
Click here to see answer by solver91311(24713)

Question 230801: What complex number (a+bi) lets radical i equal to a+bi.
Click here to see answer by stanbon(75887)

Question 230802: Mr. smith invested $24,000, part at 6% and the rest at 10%. if the interest earned was $2,000, find the amount invested at each rate.
Click here to see answer by checkley77(12844)

Question 230805: find a complex number such that radical i = a+bi.
Click here to see answer by Alan3354(69443)

Question 230827: simplify this :
1) (2y-5)(3y2-y+2)

Click here to see answer by Alan3354(69443)

Question 231145: Evaluate: (4+3i)(5-5i)(-3+4i)
Show work. (No calculator!)
Thanks for help!
Click here to see answer by user_dude2008(1862)

Question 231160: (x^2/y) = ? if x=6 and y=2

Click here to see answer by user_dude2008(1862)

Question 231208: use synthetic division to perform 3xcubed plus 8xsquared plus 5x plus ten divided by x plus 2
Click here to see answer by jsmallt9(3758)

Question 231250: find a complex number, in a+bi form, such that radical i = a+bi.
Click here to see answer by stanbon(75887)

Question 232815: 1. If a and b are real numbers, then the product of a+bi and a-bi is
(1) Always imaginary
(2) Always a real number
(3) Somtimes, but not always, a real number
(4) Somtimes, but not alwaus, imaginary
--------------------------------------------------------------------------------
Please help me with this question and explain how you got the answer thank you
Click here to see answer by rapaljer(4671)

Question 232818: Which of the following statments are always true?
(1) The sum of two imaginary numbers is an imaginary number
(2) A real number is a complex number
(3) A complex number is an imaginary number
(4) The product of two imaginary numbers is a real number
--------------------------------------------------------------------------------Please answer the question and explain how to get the answer :) Thank you
Click here to see answer by rapaljer(4671)

Question 232819: For all a and b, the additive invers of the complex number a+bi is
(1) a-bi
(2)-a+bi
(3)-a-bi
(4)1/a+bi
--------------------------------------------------------------------------------
Please solve and explain how to reach the answer
Thank you
Click here to see answer by rapaljer(4671)

Question 232820: Which of the following expressions is equal to 0
(1)i^2+i+4
(2)i^2-i^4
(3)i^2*i^4
(4)i^4/i^2
--------------------------------------------------------------------------------
Please solve and explain how you got the answer
Thank you
Click here to see answer by Alan3354(69443)

Question 232802: Find real numbers x and y such that 4-5i=2x+yi.
Click here to see answer by Alan3354(69443)

Question 233025: What is the solution to i^16+i^20+i^22? and how do you do it? Thank You
Click here to see answer by stanbon(75887)

Question 233028: what is the solution to sqrt(48c^5d^8) please show work. thanks for the help!
Click here to see answer by edjones(8007)

Question 233417: If a and b are real numbers, then the product of a+bi and a-bi is
(1) always imaginary
(2) always a real number
(3) sometimes,but not always, a real number
(4) sometimes,but not always, imaginary
----------------------------------------------------------------------------------
Please help choose the correct answer choice and please explain how to get the answer Thank you
Click here to see answer by stanbon(75887)

Question 233420: What is the reciprocal of 2+i?
Please solve and explain how to get the anwser
Click here to see answer by Alan3354(69443)

Question 233419: The expression(-1+i)^3 is equivalent to
(1) -3i
(2) -2-2i
(3) -1-i
(4) 2+2i
----------------------------------------------------------------------------------
please choose the correct answer choice and explain how to get the answer
Thank you
Click here to see answer by Alan3354(69443)

Question 233658: (t-2)^2=-16 solve the equation
Click here to see answer by Alan3354(69443)

Question 233729: 1/m+1 -1
_________________________
1/m+1 +1
Click here to see answer by stanbon(75887)

Question 233803: Simplify each complex fraction.(x-3/x-2)/(1-1/x-2)

Click here to see answer by stanbon(75887)

Question 233805: Divide.
30a^2b^3+45a^2b^2-20ab^2/5ab^2
Click here to see answer by checkley77(12844)

Question 233957: can u please help me solve this equation:
2ci+1=-d+6-ci

Click here to see answer by Alan3354(69443)

Question 234393: 6√(-12)
is it 12i√3 or 6(2i√3)
Click here to see answer by user_dude2008(1862)

Question 234401: 6√(-12)
is it 12i√3 or 6(2i√3)
Click here to see answer by stanbon(75887)

Question 234513: How do you factor 2b^2+13b-7
so far i have (2b+ )(b- )
Click here to see answer by checkley77(12844)

Question 234630: Rachel spent $16.18 for some cans of dog food cost in 79 cents each and some cans of cat food costing 69 cents each. She bought two more cans of cat food than of dog food. How many cans of each did she buy?
Click here to see answer by stanbon(75887)

Question 234733: solve and express the solution in simplest radical form
x^2-12x+25=0
Click here to see answer by checkley77(12844)

Question 234977: prove 2^6cos^4teta(angle)sin^3teta(angle)=-sin7teta(angle)-sin5teta(angle)+3sin3teta(angle)
3sinteta(angle).
Click here to see answer by Alan3354(69443)

Question 235003: 2x - 4x + 3 = 0
-3 + 4x - 2x = 0
in change
Click here to see answer by edjones(8007)

Question 235046: can someone please help show me how to sovle the following problem? i^37
Click here to see answer by Alan3354(69443)

Question 235247: what is the square root of 32 in simple radical form?
Click here to see answer by Alan3354(69443)

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