Posted by **mark** on Saturday, February 2, 2008 at 3:06pm.

Simplify the expression 6x x 2x^3 x 3x^2y^2/3x^3 x x^4y.

I'm confused. The only thing I did was simplify 3x^2y^2/3x^3 to x^1y^2. I need help with the problem.

- math -
**drwls**, Saturday, February 2, 2008 at 3:16pm
You seem to be using "x" both as a variable and as the symbol for multiplication. We prefer to use * for multiplication here, to avoid confusion.

I assume you want to simplify

6x*2x^3 * 3x^2*y^2/(3x^3*x^4*y).

(This assumes that your x^4y at the end belongs in the denominator).

Rewrite it by adding repeated exponents:

36 x^6*y^2/(3x^7*y)

= 12 x/y

The simplification you wrote is wrong.

3x^2y^2/3x^3 = y^2*x^-1 = y^2/x

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