How do i write this without the exponet?

Question

anonymous · Answer

|dw:1380144749848:dw|

plainntall · Answer

What does the negative sign mean when it is an exponent?

plainntall · Answer

What does the 2 or square mean?

anonymous · Answer

it means thats how many times u mulitply the base.  But the negative is throwing me off. Is it,   9/7* (-9/7)*(-9/7) ?

zzr0ck3r · Answer

$$(\frac{a}{b})^{-c}=(\frac{b}{a})^c=\frac{b^c}{a^c}$$

jdoe0001 · Answer

$\bf \cfrac{9}{7}^{-2} \implies \cfrac{9^{-2}}{7^{-2}}\ \quad \ \quad \
\textit{keep in mind that }\qquad a^{-n} = \cfrac{1}{a^n}$

plainntall · Answer

A negative in the exponent means you find the inverse of the value so 1/2^-1 would be 2.
7/9^-1 would be?

jdoe0001 · Answer

well... rather
$\bf \left(\cfrac{9}{7}\right)^{-2} \implies \cfrac{9^{-2}}{7^{-2}}\ \quad \ \quad \
\textit{keep in mind that }\qquad a^{-n} = \cfrac{1}{a^n}$

zzr0ck3r · Answer

:)

zzr0ck3r · Answer

flip the fraction then apply the positive exponent to the top and bottom of the fraction.

plainntall · Answer

So the -2 exponent means turn the fraction upside down and square it.

anonymous · Answer

yes ok now i get it, lol i would have gottn it wrong