# Perform the indicated operations and simplify

• Dec 16th 2009, 08:24 PM
Draft
Perform the indicated operations and simplify
Note: Answers should have no zero or negative exponents.

1) -24x^2y^3 - 30x^5 y + 6xy^2 / 6xy^2

2) 2[-3A - 2(2B + 4A) + B]
• Dec 16th 2009, 08:45 PM
Prove It
Quote:

Originally Posted by Draft
Note: Answers should have no zero or negative exponents.

1) -24x^2y^3 - 30x^5 y + 6xy^2 / 6xy^2

2) 2[-3A - 2(2B + 4A) + B]

2) $\displaystyle -2[-3A - 2(2B + 4A) + B] = -2(-3A - 4B - 8A + B)$

$\displaystyle = -2(-11A - 3B)$

$\displaystyle = 22A + 6B$

$\displaystyle = 2(11A + 3B)$.

1) I can't tell if your original expression is

$\displaystyle -24x^2y^3 - 30x^5y + \frac{6xy^2}{6xy^2}$

or

$\displaystyle \frac{-24x^2y^3 - 30x^5y + 6xy^2}{6xy^2}$.

Please either use brackets correctly, or use LaTeX.
• Dec 16th 2009, 08:53 PM
Draft
It's the second one, sorry.

and I don't know what latex is lol
• Dec 16th 2009, 08:57 PM
Prove It
LaTeX is the programming language used for mathematical typesetting - i.e. what I used to post my responses...

$\displaystyle \frac{-24x^2y^3 - 30x^5y + 6xy^2}{6xy^2} = \frac{6xy(-4xy^2 - 5x^5 + y)}{6xy^2}$

$\displaystyle = \frac{-4xy^2 - 5x^5 + y}{y}$

$\displaystyle = -4xy - \frac{5x^5}{y} + 1$.