# Questions on Algebra: Polynomials, rational expressions and equations answered by real tutors!

Algebra ->  -> Questions on Algebra: Polynomials, rational expressions and equations answered by real tutors!      Log On

 Ad: Mathway solves algebra homework problems with step-by-step help! Ad: Algebrator™ solves your algebra problems and provides step-by-step explanations!

 Question 665655: Form a polynomial f(x) with real coefficients having the given degree and zeros. Degree: 4; zeros: 2i and -5i Click here to see answer by DrBeeee(577)

 Question 665748: The total resistance R of two resistors in parallel is given R=(1)/(1/R1+1/R2) where R1 is the resistance of the first and R2 the resistance of the second. Solve the equation for R1 and simplify. Click here to see answer by Alan3354(34677)

 Question 665742: What is the result of 4 * 3 Click here to see answer by Alan3354(34677)

 Question 665703: Using FOIL, simplify the expression "(3x + 2)(3x - 2)." Show that a particular factoring formula leads to the same answer. Click here to see answer by MathLover1(7480)
 Question 665703: Using FOIL, simplify the expression "(3x + 2)(3x - 2)." Show that a particular factoring formula leads to the same answer. Click here to see answer by lynnlo(4174)

 Question 665738: find the lcd of the ff: 1.m+3/m^2-13m+36 and 7/2m^2-7m-4 and m-1/2m^2-17m-9 2.a/a^3-8 and 7/a^2-4a+4 and a+5/a^2+2a+4 Click here to see answer by lynnlo(4174)

 Question 665896: Write a product of linear factors to the polynomial X^4-x^3+3x^2-9x-54. Click here to see answer by Alan3354(34677)

 Question 666014: what is the zero of polynomial function of :f(x) = x^4 + 7x^3 + 5x^2 – 31x – 30 Click here to see answer by lynnlo(4174)

 Question 666125: how do you solve 2 sqrt 50 - 3 sqrt 128 Click here to see answer by swincher4391(733)

 Question 666180: Identify the property of integers being illustrated: 9 x (3 x -5) = (9 x 3) x -5 Click here to see answer by swincher4391(733)

 Question 666217: If x = -3, what is the value of x to the 7 power -1 ___________________ x + 1 Click here to see answer by DrBeeee(577)

 Question 666233: What are the steps to simplify the following expression? square root of -8 square root -24 Thank you! Click here to see answer by swincher4391(733)

 Question 666291: How do you factor 6x squared minus x minus 15 Click here to see answer by lynnlo(4174)
 Question 666291: How do you factor 6x squared minus x minus 15 Click here to see answer by MathTherapy(1817)

 Question 666327: What polynomial, when divided by yields as a quotient? Click here to see answer by Leaf W.(99)

 Question 666430: Write the rational expressions in simplest form: x2-25/x3-125 Click here to see answer by swincher4391(733)

 Question 666451: I need to solve this and show step by step. So here it is: 6x^3-26x^2-20x=0 Ok thanks. Click here to see answer by MathLover1(7480)
 Question 666451: I need to solve this and show step by step. So here it is: 6x^3-26x^2-20x=0 Ok thanks. Click here to see answer by lynnlo(4174)

 Question 667085: Factor completely. Remember to look first for a common factor. If a polynomial is prime, state this. 16x − 81x3 Click here to see answer by mananth(13127)

 Question 667139: I am trying to solve an equation by factoring. The equation is: x^2/2 + x/20 = 10 What I have done is cleared the denominators and ended up with: 10x^2 + x = 10 Then I moved the 10 to the left side of the equation and ended up with: 10x^2 + x -10 = 0 I am stuck and cannot factor: 10x^2 + x -10 The answer in the back of the book is: {2/5, -1/2}, but am not sure how to get to this answer without successfully factoring first. In an attempt to factor, I multiplied the first and last coefficients and came up with -100. There are no numbers that when multiplied together equal -100 and also equal the middle coefficient of 1 when added together. Please help. Click here to see answer by josmiceli(10616)

 Question 667391: how do you factor this? 48x^2 + 48xy^2 + 12y^4 = Click here to see answer by Alan3354(34677)

 Question 667406: how to factor ax^3+a i factored out the "a" and have a(x^3+1) i'm using (a+b) (a^2-ab+b^2) i believe it's (x+1)(x^2-1x+1) I'm stuck i don't know how to move on from here. Thank you :) Click here to see answer by lynnlo(4174)
 Question 667406: how to factor ax^3+a i factored out the "a" and have a(x^3+1) i'm using (a+b) (a^2-ab+b^2) i believe it's (x+1)(x^2-1x+1) I'm stuck i don't know how to move on from here. Thank you :) Click here to see answer by Alan3354(34677)