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EndersWorld:
Radical expressions
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EndersWorld:
\[\frac{ 8x^7y^8z }{ 20x^6y^3z }\]
EndersWorld:
Me and shadow did a TON of this a few weeks ago, but the class moves so quickly I can’t remember a whole lot. I know in division I subtract the exponents.
Hero:
Yes, and so basically, since you're starting off, it's best to separate these into separate fractions and do one at a time: \(\dfrac{8}{20} \cdot\dfrac{x^7}{x^6}\cdot\dfrac{y^8}{y^3} \cdot\dfrac{z}{z}\)
Hero:
I'm certain you are able to easily reduce the numerical fraction to start with, right?
EndersWorld:
The two z’s do cancel out right?
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Hero:
Yes, because anything over itself equals 1.
Hero:
It's best after that to start left and work right.
EndersWorld:
I may be wrong
Hero:
Don't be afraid to post what you've done so far.
EndersWorld:
\[\frac{ 2xy^5 }{ 5 }\]
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Hero:
Looks good to me.
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