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

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 Algebra: Polynomials, rational expressions and equations Solvers Lessons Answers archive Quiz In Depth

 Question 452963: I am having a problem factoring this one 14a^(2)-45a-14 Click here to see answer by mananth(12270)

 Question 452982: I'm having a hard time trying to simplifying this problem by factoring by 1. It doesn't seem to be the kind of problem I've seen before. I tried working it but I don't think its right. The problem is 18t^4/20t^5. I got 9/10t Click here to see answer by mananth(12270)

 Question 453185: Can you please help me solve this x+8 ___ x-4 Determine the values of the variable that must be excluded from the domain. Can you tell me how you got the answer too? Click here to see answer by jim_thompson5910(28715)

 Question 453211: Parabolas Determine the vertex of the given equation. y = 3x2 - 3x + 2 Click here to see answer by jim_thompson5910(28715)

 Question 453208: Parabolas Determine the vertex of the given equation. y = -x2 + 4x - 4 Click here to see answer by rfer(12730)

 Question 453256: Question: Work: i dont know what to do next to solve for x? Click here to see answer by MathLover1(6812)
 Question 453256: Question: Work: i dont know what to do next to solve for x? Click here to see answer by pedjajov(51)

 Question 453257: How do you find the zeros of 2x3+x2-x ? and what is the multiplicity of the zeros? Click here to see answer by stanbon(57967)

 Question 453269: Can you please explain how to factor this expression? Can you also please include steps and why you did each step? 6n^2-23n+7 Thanks! Click here to see answer by stanbon(57967)

 Question 453575: Express each number in scientific notation. 12. 46,300 13. 0.003592 14.284*10 ^3 15.52.8*10^-9 Click here to see answer by rfer(12730)

 Question 453636: can someone plssssssssssssssss help me? solve the equation for the specified variable. solve h= 2A/B+b for b Click here to see answer by poliphob3.14(115)

 Question 453638: can someone plssssssssssssssss help me? solve the equation for the specified variable. solve 1/m + 1/n+ 1/p =1/t for p Click here to see answer by ankor@dixie-net.com(15746)
 Question 453638: can someone plssssssssssssssss help me? solve the equation for the specified variable. solve 1/m + 1/n+ 1/p =1/t for p Click here to see answer by solver91311(17077)

 Question 453701: Need help & o explain how to solve the equation: .-4.2=2.1n Click here to see answer by Alan3354(31529)

 Question 453756: Mr. Zito leaned a 10 foot ladder against the wall, placing the bottom of the ladder on the floor 3 feet away from the wall. How high up on the wall was the ladder? Click here to see answer by mananth(12270)

 Question 454354: What is the degree of the polynomial p(x) = 2x^5 - 6x^4 + 2x^2 + 7x - 9 Click here to see answer by richwmiller(9144)

 Question 454708: what is the factor of f(x)= x cubed+ 2x squared- 41x- 42 Click here to see answer by stanbon(57967)

 Question 454857: Will someone assist me in setting up this math problem so I can solve for x ? the question is: Evaluate each polynomial for x=3 and for x= -3. 1/3x^4 - 2x^3 thank you Click here to see answer by MathLover1(6812)

 Question 454811: f(x)=x^3-9x End behavior___________ Maximum possible number of zeros_____ x-intercepts___________ i don't know how to solve this one? Click here to see answer by rfer(12730)

 Question 454912: choose the best response to describe the polynomial :-4x^3-2x^2+3x the coefficients are all negative. the leading coefficient is negative it is a binomial it is of 4 degree Click here to see answer by edjones(7569)

 Question 455109: The frequency, in Hertz, of a particular wavelength of light is 3x10^8/6x10^-7 . Write this number in scientific notation. Click here to see answer by rfer(12730)

 Question 455115: Is this problem done correctly I would like someone to check Multiply: (t^2-0.2) (t^2+0.2) t^4 - 0.04 thank you, Click here to see answer by rfer(12730)

 Question 455139: 3. In 2002, Home Depot’s sales amounted to \$58,200,000,000. In 2006, its sales were \$90,800,000,000. a. Write Home Depot’s 2002 sales and 2006 sales in scientific notation. You can find the percent of growth in Home Depot’s sales from 2002 to 2006 by following these steps: • Find the increase in sales from 2002 to 2006. • Find what percent that increase is of the 2002 sales. b. What was the percent growth in Home Depot’s sales from 2002 to 2006? Do all your work by using scientific notation. The Home Depot, Inc. (2007, March 29). 2006 Annual Report. Retrieved from http://www6.homedepot.com/annualreport/index.html Click here to see answer by rfer(12730)

 Question 455146: Will someone check this problem. Did I miss a step with this problem? (a-0.4) (a-0.8) a^2 - 1.2a + 0.32 Click here to see answer by stanbon(57967)

 Question 455143: Will someone check this problem for me, I appreciate it very much: Subtract (0.5x^4-0.6x^2+0.7)- (2.3x^4+1.8x-3.9) -18x^4 -0.6x^2 - 1.8x +4.6 Did I do all the steps? Click here to see answer by nerdybill(7008)

 Question 455189: below is the question for rational equations. the cost in millions of dollars, to remove x% of pollution in a lake modeled by c= 6000/200-2x what is the cost to remove 75% of the polluant? Click here to see answer by stanbon(57967)

 Question 455233: List the coefficients of the given polynomial: 3x^3 + 4x^2 – 9x + 3 is it; A.3,4,-9 B.3,4,-9,3 C.3,4,9 D.3,2,1 Click here to see answer by nerdybill(7008)

 Question 455234: Choose the best response to describe the polynomial: -7x2 + 6x A.It is a trinomial B.It has a leading coefficient of 7 C.It is quadratic D. It is in ascending order Click here to see answer by edjones(7569)