simplifying rtnl expr: (x^3+3x^2 / 2x) * (5x^3 / x^2+5x+6)

[zooanimal98]

here is the problemo:

(x^3 + 3x^2 / 2x) times (5x^3 / x^2 + 5x +6)

This is what I did.

First: (x^2(x+3) / 2x) times (5x^3 / (x+3)(x+2))

Second I combined: (x^2 (5x^3)) / 2x(x+2)

third: 5x^5 / 2x^2 + 4x

is that the answer?

 

[tkhunny]

Re: HELP: simplifying rational expressions

Nope. Sorry. You left common factors. Good try, though. Hint: x/x = 1

 

[Denis]

Re: HELP: simplifying rational expressions

(x^3 + 3x^2 / 2x) times (5x^3 / x^2 + 5x +6)

That needs extra brackets: ((x^3 + 3x^2) / (2x)) times (5x^3 / (x^2 + 5x +6)) ... OK?!

Hint: (x^3 + 3x^2) / (2x) = (x^2 + 3x) / 2 ... kapish?