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

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 Algebra: Complex Numbers Solvers Lessons Answers archive Quiz In Depth

 Question 416594: how do you find the number of complex roots in a equation such as Click here to see answer by richard1234(5390)

 Question 417505: the product of the page numbers of two facing pages is 600 what are the two facing pages numberS? Click here to see answer by stanbon(57219)

 Question 417504: the area of a square is 45 more than the perimeter. find the length of a side :) Click here to see answer by stanbon(57219)
 Question 417504: the area of a square is 45 more than the perimeter. find the length of a side :) Click here to see answer by ewatrrr(10682)

 Question 417558: In the formula R=0.4x-0.0001x^2. What is the Vertex and can you show me how you got it. Click here to see answer by nerdybill(6948)

 Question 417471: This is a differentiation problem. If you can help, thank you. f(x)=1/2(e^x+e^-x. Find f'(x)and f''(x) Click here to see answer by Gogonati(809)

 Question 417878: In this equation, h=-16t^2+20t+300, can you help me make tables of values for the height equation, with increments of 0.5 seconds. And can you show me how you got that Click here to see answer by ankor@dixie-net.com(15624)

 Question 418053: how do i simplify the square root of negative 64 X to the 4th power? Click here to see answer by stanbon(57219)

 Question 418197: I am working on expressing negative square roots in terms of j. For example: I have 4* the square root of -8 when i put it in the calculator it comes up 11.313j but the back of the book says 8j* square root of 2. If i put that into the calculator i get the same answer as i was getting before. 11.313j. I don't know how to get the answer in the back of the book. Click here to see answer by nerdybill(6948)

 Question 418232: how do I find the vertex for X^2-3x-4=0? Click here to see answer by ewatrrr(10682)

 Question 418948: Solve by completing the square x^2+9x+20=0 and can you show me how you got that Click here to see answer by scott8148(6628)

 Question 419555: Simplify the rational expression. (81x + 18) / (18x - 9) Click here to see answer by algebrahouse.com(1079)

 Question 419567: Simplify the rational expression. (a^2 + 13a + 40) / (a^2 - 4a - 45) Click here to see answer by algebrahouse.com(1079)

 Question 420086: I have the problem (3y^2-3)/(y^2-1) it is a fraction. Can I simplify the fraction by crossing out the y^2 and end up with (3-3)/(-1) and simplify to get (0)/(-1) If not then how do i simplify the fraction? Click here to see answer by stanbon(57219)

 Question 420088: Need step by step help to solve this problem 9x (2nd power) -6x+1 Thank you Click here to see answer by stanbon(57219)

 Question 420174: Find the least common multiple of each pair of polynomials. 3x(x+2) and 6x(2x-3) I think the LCM is 6x but i'm not sure. Please show work so I know how you got your answer. Thanks Click here to see answer by stanbon(57219)
 Question 420174: Find the least common multiple of each pair of polynomials. 3x(x+2) and 6x(2x-3) I think the LCM is 6x but i'm not sure. Please show work so I know how you got your answer. Thanks Click here to see answer by dnanos(83)

 Question 420220: what is a factor of 3a^2 + 12a? 3a 4a 3a^2 4a^2 Click here to see answer by edjones(7569)

 Question 420231: Find the value of a 1/a = 1/3 + 1/4 + 1/6 Click here to see answer by edjones(7569)

 Question 420229: Find the value of a 1 = 1/a + 1/6 + 1/8 Click here to see answer by sudhanshu_kmr(1152)

 Question 420562: what is the multiplicative inverse of 3+5i 8 Click here to see answer by jsmallt9(3296)

 Question 420990: In skeet shooting, the clay pigeon is launched from a height of 4 feet and reaches a maximum height of 164 feet at a distance of 80 feet from the launch site. a) write an equation for the height of the clay pigeon in terms of the horizontal distance it has traveled? Click here to see answer by lwsshak3(6463)

 Question 421143: In skeet shooting, the clay pigeon is launched from a height of 4 feet and reaches a maximum height of 164 feet at a distance of 80 feet from the launch site. a) write an equation for the height of the clay pigeon in terms of the horizontal distance it has traveled? Click here to see answer by stanbon(57219)

 Question 422835: solve the equation in the complex number system 8x^2+1=5x Click here to see answer by jsmallt9(3296)