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

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 Algebra: Complex Numbers Solvers Lessons Answers archive Quiz In Depth

 Question 455164: Can someone help me with this, I can't figure it out with my calculator. Use a calculator to approximate the sqrt of 197/39 Click here to see answer by nerdybill(6962)

 Question 455727: Compute the special products and write your answer in a+bi form. (-2+5i)^2 I know I should foil this but I am doing something wrong. Could you help me here showing all steps please. David Click here to see answer by robertb(4012)

 Question 455789: give me solution of i to the power i Click here to see answer by stanbon(57387)

 Question 455788: give me the solution of i to the power i Click here to see answer by stanbon(57387)

 Question 456079: how do you simplify the equation: (r^2 - r - 6)/ (r^2 -r - 12) also how do you simplify: (-8(4-y))/((y+2)(y-4)) Click here to see answer by richwmiller(9143)

 Question 456348: need to find the quotient of the complex numbers (-5+i)/(-7+ i) Click here to see answer by Alan3354(30993)

 Question 456539: Could you please tell me if I am correct on this equation? 4-v/6-v=2/v-6. Am I correct in thinking there is no solution? Thanks for all your help!! Click here to see answer by stanbon(57387)

 Question 456714: Write each number as the product of a real number and i. 1) The square root of negative 36 Click here to see answer by stanbon(57387)

 Question 458306: I need help simplifying this problem: (x^2+6x/10)(4/x^2-36) I wrote it in another way so you might understand more: x^2 + 6x 4 --------- * --------- 10 x^2-36 Click here to see answer by mananth(12270)

 Question 459434: when plotting -6-4i on the complex plane, how do you need to move? Click here to see answer by richard1234(5390)
 Question 459434: when plotting -6-4i on the complex plane, how do you need to move? Click here to see answer by MathLover1(6638)
 Question 459434: when plotting -6-4i on the complex plane, how do you need to move? Click here to see answer by Alan3354(30993)

 Question 459594: i really need help i am an at home student so its hard to do some of the math (4-6i)-2(5+2i)-i Click here to see answer by sudhanshu_kmr(1152)

 Question 459729: x2 + 4x = 23 complete the square root . Click here to see answer by MathLover1(6638)

 Question 461668: Express (1 – i) – (-1 + 6i) in the form of a + ib. Click here to see answer by MathLover1(6638)

 Question 462061: Evaluate the polynomial for x= -1 -3x^3 + 8x^2 - 9x-2 Click here to see answer by algebrahouse.com(1079)

 Question 462083: I am supposed to complete this table using polynomials. I don't know how to and need help. -6x^4+6x^3 - 6x^2 + 5x - 7 The table is divided in 4 sections: Term, Coefficient, Degree of Term, Degree of Polynomial Click here to see answer by Edwin McCravy(8909)
 Question 462083: I am supposed to complete this table using polynomials. I don't know how to and need help. -6x^4+6x^3 - 6x^2 + 5x - 7 The table is divided in 4 sections: Term, Coefficient, Degree of Term, Degree of Polynomial Click here to see answer by solver91311(16897)
 Question 462083: I am supposed to complete this table using polynomials. I don't know how to and need help. -6x^4+6x^3 - 6x^2 + 5x - 7 The table is divided in 4 sections: Term, Coefficient, Degree of Term, Degree of Polynomial Click here to see answer by MathLover1(6638)

 Question 462474: my equation is 9x squared + 6x=-1 please explain this to me...or even this one h= -16t squared + 40t where t is the time in seconds and h is the height of the ball. will the ball ever reach 22 feet? Click here to see answer by MathLover1(6638)

 Question 462671: What is 5 over 6-7i? I have 30/85+35/85i....but I'm not sure if this is correct Click here to see answer by robertb(4012)

 Question 462738: Determine (-2+i3)^5 in the polar form and in cartesian form Click here to see answer by stanbon(57387)
 Question 462738: Determine (-2+i3)^5 in the polar form and in cartesian form Click here to see answer by Edwin McCravy(8909)

 Question 463149: What is the greatest common factor of 12x and 14x^3 ? Click here to see answer by MathLover1(6638)

 Question 463397: Using algebraic rules and without using a calculator, evaluate: (a) 236/(236^2-238*234) (b) 18*164/(164^2-161*167) (c) 88888888/(88888889^2-88888888*88888890 Click here to see answer by robertb(4012)

 Question 463449: I need to check an answer which I have got for evaluating a coplex number The question is: (3+j3)(2+j5) The answer I've got is: =-9+j21 Click here to see answer by MathLover1(6638)

 Question 463800: I don't understand how to do this question. I have to multiply (7t-8)(7t+8) Click here to see answer by rfer(12670)