SOLUTION: Hi could you please solve- 16/ 12x- x^3 when x=3 i understand the answer should come to 25+12x, but do i just leave it like that?

Algebra ->  Expressions-with-variables -> SOLUTION: Hi could you please solve- 16/ 12x- x^3 when x=3 i understand the answer should come to 25+12x, but do i just leave it like that?      Log On


   



Question 481052: Hi could you please solve- 16/ 12x- x^3 when x=3
i understand the answer should come to 25+12x, but do i just leave it like that?

Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
16/ 12x- x^3 when x=3
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First, there's nothing to solve, it's not an equation.
Sub 3 for x
I think you mean
16%2F%2812x+-+x%5E3%29
= 16%2F%2812%2A3+-+27%29
= 16/(36 - 27)
= 16/9