Question

Can someone check my simplification of this expression please (give me a sec to load it)

Answer 1

\[\frac{5}{x}-\frac{2x-1}{x^2}+\frac{x+7}{x^3}\]

Answer 2

and i came up with
\[\frac{5x^6+5x^4-2x}{x^5}\]

Answer 3

NO
\[(5x^4-2x^2+2x+7)/x^3\]

Answer 4

\[\frac{5}{x}*\frac{x^2}{x^2}-\frac{2x-1}{x^2}*\frac{x}{x}+\frac{x+7}{x^3}\]
\[\frac{5x^2}{x^3}-\frac{x(2x-1)}{x^3}+\frac{x+7}{x^3}\]
\[\frac{5x^2-x(2x-1)+x+7}{x^3}\]
\[\frac{5x^2-2x^2-x+x+7}{x^3}\]
\[\frac{3x^2+7}{x^3}\]

Answer 5

.... forgot to switch a negative :)

Answer 6

+2x up top

Answer 7

no there is an error: -x+x is +x+x

Answer 8

I don't know why i wanted to use the x^5 there, thanks guys let me work this out again

Answer 9

bye ;)