Posted by **Clare** on Monday, April 16, 2012 at 7:36pm.

(100x^3y^-2)/(64x^7y^4)

- Algebra -
**Clare**, Monday, April 16, 2012 at 7:37pm
Please simplify completely :)

- Algebra -
**Reiny**, Monday, April 16, 2012 at 8:05pm
100/64 = 25/16

x^3 / x^7 = 1/x^4

y^-2 / y^4 = 1/y^6

so (100x^3y^-2)/(64x^7y^4)

=25/(16 x^4 y^6)

- Algebra -
**Clare**, Monday, April 16, 2012 at 8:26pm
wait isn't (y^-2)/(y^4)=y^2?

- Algebra -
**Reiny**, Monday, April 16, 2012 at 9:14pm
nope

(y^-2) times y^4 would be y^2, but you were dividing, so you have to subtract the exponents

-2 - 4 = -6

- Algebra -
**Clare**, Tuesday, April 17, 2012 at 7:22pm
Ohh right thank you

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