SOLUTION: I'm kinda confused about how to solve this problem. Do i just solve the denominator or what. Set x=4, the problem is 4x/x^3-2. Can you please help me tonight. Thank you

Algebra ->  Polynomials-and-rational-expressions -> SOLUTION: I'm kinda confused about how to solve this problem. Do i just solve the denominator or what. Set x=4, the problem is 4x/x^3-2. Can you please help me tonight. Thank you      Log On


   

Question 466234: I'm kinda confused about how to solve this problem. Do i just solve the denominator or what. Set x=4, the problem is 4x/x^3-2. Can you please help me tonight. Thank you
Answer by algebrahouse.com(1659) About Me  (Show Source):
You can put this solution on YOUR website!
4x
------
x³ - 2

4(4)
------ {substituted 4 in for x}
4³ - 2

16
------- {took 4 to the third power}
64 - 2

16
--- {subtracted 64 - 2}
62

= 8/31 {reduced}

For more help from me, visit: www.algebrahouse.com