# Questions on Algebra: Complex Numbers answered by real tutors!

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 Algebra: Complex Numbers Solvers Lessons Answers archive Quiz In Depth

 Question 445522: 6 + 2i/3+i Click here to see answer by stanbon(57231)

 Question 445825: Put the following in the form a +bi.......IZI=5 and Arg(z)=(2pi/3) Click here to see answer by robertb(4012)

 Question 446492: how to solve 8i/2-6i Click here to see answer by Alan3354(30982)

 Question 446614: how do you write 3+2i/2+i in standard form Click here to see answer by chriswen(106)

 Question 447178: Subtract : (7-3i)-(6-2i) Click here to see answer by poliphob3.14(115)

 Question 447455: what is (3+ 2i)squared Click here to see answer by stanbon(57231)

 Question 447454: what is the reciprocal of 2i Click here to see answer by Leaf W.(97)
 Question 447454: what is the reciprocal of 2i Click here to see answer by stanbon(57231)

 Question 447466: (3-71)(3+7i) (2-2i)(2+2i) (7-10i)(7+10i) (2+5i)(2-5i) (4+3i)(1-i) (5-7i)(1+2i) (2-5i)(2-5i) Click here to see answer by ewatrrr(10682)

 Question 447465: what is the reciprocal of 3-7i what is the reciprocal of 1 + 6i what is the reciprocal of -1-i Click here to see answer by ewatrrr(10682)

 Question 447580: Can someone help clear up something for me? Are complex numbers the same as complex solutions? I've been trying solve the problem using quardratic formula, but I don't come anywhere close. x^2+37=0 Thanks Click here to see answer by Alan3354(30982)

 Question 447906: simplify (-5+i)(-6-7i) Click here to see answer by sudhanshu_kmr(1152)

 Question 449326: After completing a trip of 126 km, Victor finds that he can save 1 hour if he increases his speed by 8 km/hr. What is his original speed? Click here to see answer by ankor@dixie-net.com(15632)

 Question 449392: Nancy and Liz are working on a take-home test. Normally, Liz finishes a take-home test in 2 hors less time than Nancy. Nancy works by herself for 3 hours, then when Liz comes along, together, they finish the job in 2 more hours. How many hours does it take Nancy to the test on her own? Click here to see answer by stanbon(57231)

 Question 449416: Each of two road graders can pave a certain section of the road in 15 hours working alone. After two machines have been working for 2 hours they are joined by an older model that would take 20 hours to pave the section road by itself. How long after the first two machines began working will it take the three machines to pave the section of the road? Click here to see answer by stanbon(57231)

 Question 449535: The coach and the players of the football team shared the expense of a bus trip to a professional game. When 5 players were unable to go, each person had to pay an additional \$1.50 to cover the cost of \$540. How many people made the trip? Click here to see answer by josmiceli(9654)
 Question 449535: The coach and the players of the football team shared the expense of a bus trip to a professional game. When 5 players were unable to go, each person had to pay an additional \$1.50 to cover the cost of \$540. How many people made the trip? Click here to see answer by ankor@dixie-net.com(15632)

 Question 448942: (2-4i)(-6+4i) (-3+2i)(-6-8i) (8-6i)(-4-4i) (1-7i)squared 6(-7+6i)(-4+2i) Click here to see answer by Alan3354(30982)

 Question 449914: i(5+4i)(5-4i) Click here to see answer by rwm(914)

 Question 449917: 4x^3-15x^2=4x whats the solution set? Click here to see answer by robertb(4012)

 Question 449923: (2k+1)^2 whats the solution set using the square root property? Click here to see answer by richard1234(5390)

 Question 449929: i(3+9i)(3-9i)= Click here to see answer by robertb(4012)

 Question 450324: -5i/3+5i How do I divide this complex equation? Click here to see answer by stanbon(57231)

 Question 450516: what is 3/ (2-i) Click here to see answer by solver15(27)

 Question 450977: What are the steps to solving this equation for x? Thank you. Click here to see answer by rwm(914)

 Question 451113: (3+5i)/(8i) Click here to see answer by Gogonati(809)

 Question 451168: how do you solve for x? y=x/2+10 Click here to see answer by Alan3354(30982)

 Question 451157: Divide. (4+2i)/(5-6i) Write your answer as a complex number in standard form. Click here to see answer by jim_thompson5910(28503)

 Question 451711: how do i solve this 3x^2 + x = -7 Click here to see answer by ewatrrr(10682)

 Question 451813: can someonnnneeeeeee help plsssss ;(? complex fractions. simplify each complex fraction. 2/c+1 -1 over 2 + 5/c+1 Click here to see answer by stanbon(57231)

 Question 451817: can someonnnneeeeeee help plsssss ;(? complex fractions. simplify each complex fraction. y-4/y over 1-2/y Click here to see answer by ewatrrr(10682)
 Question 451817: can someonnnneeeeeee help plsssss ;(? complex fractions. simplify each complex fraction. y-4/y over 1-2/y Click here to see answer by josmiceli(9654)

 Question 451832: can someonnnneeeeeee help plsssss ;(? complex fractions. simplify each complex fraction. x/1 +2/x-1 over 4/x-1 Click here to see answer by ewatrrr(10682)

 Question 452134: I am having problems trying to solve this problem (a^3b^2)^4 Click here to see answer by edjones(7569)

 Question 452288: x^2 + 2^2= Click here to see answer by stanbon(57231)

 Question 452159: A desk is on sale for 29% off. The sale price is \$497. What is the regular price? Click here to see answer by Alan3354(30982)

 Question 453207: Solve:5 times squareroot of -24 times 3 squareroot of -18 Click here to see answer by stanbon(57231)

 Question 453279: Express in terms of i sqrt-48 I can't even figure out how to use the scientific calculator on this one, never mind work it by hand. Can someone please help I'm lost. Click here to see answer by Alan3354(30982)
 Question 453279: Express in terms of i sqrt-48 I can't even figure out how to use the scientific calculator on this one, never mind work it by hand. Can someone please help I'm lost. Click here to see answer by stanbon(57231)

 Question 453681: how do you solve (3+2i)+(5-6i) can you please show and explain how you got the answer. (for a complex number ) thank you, mike Click here to see answer by Alan3354(30982)

 Question 453794: solve by completing the square. x^2+4x-12=0 Click here to see answer by mananth(12270)
 Question 453794: solve by completing the square. x^2+4x-12=0 Click here to see answer by Alan3354(30982)

 Question 453903: Hi, Solve: Thanks :) Click here to see answer by stanbon(57231)

 Question 454435: I am trying to find a way to graphically prove dividing two complex numbers. When I add to complex numbers I can prove it by using the parallelogram method. How can I prove dividing complex numbers? Click here to see answer by richard1234(5390)

 Question 454700: solve (3+7i)-(-8+6i) and show work Click here to see answer by Alan3354(30982)

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