Help!!
@freckles
I would first apply the law: \[(b^{q}x^{r}y^{s})^n=b^{q \cdot n}x^{r \cdot n} y^{s \cdot n }\]
we see we can apply this law in both numerator and denominator
I did. my answer was 1/x^3
actually that is kinda close
let's look at just the x part \[\frac{(x^2)^3}{(x)^{-9}}\]
what do you get on top? and on bottom?
x^6/x^-9
ok and what can you do with negative exponents
like the law is that you can do this: \[\frac{1}{x^{-n}}=x^{n} \text{ right ? }\]
And thats how i got x^3.
or you can even apply quotient rule your answer still is off
Oh, so is it x^15?
yes! :)
\[x^{6} x^{9} \text{ since we brought that factor \to the \top }\]
and 6+9 as you say is 15 so you have x^(15)
Y is canceled out right?
o\[\frac{x^6}{x^{-9}} =x^{6-(-9)}=x^{6+9}\]r quotient rule
we can also look at that part if you wish \[\frac{(y^{-3})^3}{(y)^{-9}}\]
we know that first law I mentioned we can apply to the top which means the top is going to be ?
y^-9
\[\frac{(y^{-3})^3}{(y)^{-9}}=\frac{y^{-9}}{y^{-9}}=1 \] definitely cancels in your fraction then
so does the constant part \[\frac{(3)^3}{27}=\frac{27}{27}=1\]
Thanks! You just got a new fan! So btw, all i have to enter is x^15 right. or should i enter 1/x^15
definitely x^(15) recall that we had \[\frac{(x^2)^3}{x^{-9}}=\frac{x^6}{x^{-9}}=x^{6-(-9)}=x^{6+9}=x^{15}\]
Alright great. :) Thanks a bunch!
np
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