Question

Simplify the expression using the properties of exponents:

Answer 1

\[\left(\begin{matrix}x \\ y\end{matrix}\right)^{7}\]

Answer 2

x^8
y^8

Answer 3

\[\frac{x^7}{y^7}\]

Answer 4

\[x^7 y^{-7}\]

Answer 5

oh oops my mistake i forgot it was multiplician not addition.

Answer 6

which has exactly the same number of symbols at
\[(\frac{x}{y})^7\]

Answer 7

and one more than
\[x^7y^{-7}\]

Answer 8

and imranmeah you shouldn't have a negative exponent. you should always leave it in fraction form.

Answer 9

who gives these problems and what do they really want?

Answer 10

Why shouldn't I have negative exponent?

Answer 11

go ask you math teacher what "simplify" means

Answer 12

most teachers will ask for positive exponents. give both answers just in case.

Answer 13

if i want to multiply i certainly would like to be looking at
\[x^7y^{-7}\]

Answer 14

for example if i want
\[x^7y^{-7}y^{10}\] i am in good shape. presumably negative exponents are useful, so why on earth are you supposed to get rid of them?

Answer 15

any math teacher that uses the word "simplify" when he or she means "write using positive exponents" shouldn't be in a class room