Simplifying another expression

**mt_lapin** · March 16th 2008, 02:54 PM

$\frac{(-4)^2x^2(yz)^4}{-16xy^{-4}z}$

So:

$\frac{-16x^2y^4z^4}{-16xy{-4}z}$

Then:

$xy^8z^3$

However, I'm told the correct answer is $-xy^8z^3$

Why $-x$ instead of $x$ ?

**NAPA55** · March 16th 2008, 03:22 PM

Remember, when you square a negative number, the result is always positive. In your numerator, you have (-4)². The answer to that is 16, not -16.

I think you got it from here.

**mt_lapin** · March 16th 2008, 03:53 PM

Oh. You are absolutely right! I completely forgot about that.

Thread: Simplifying another expression

LinkBack

Thread Tools

Display

Simplifying another expression

Similar Math Help Forum Discussions

Simplifying log expression for y

Simplifying an expression.

Simplifying an expression

Simplifying this expression:

I need help simplifying this expression...

Search Tags