Question

How do you express x3y−5 with positive exponents?

Answer 1

This equation is a fraction, which is another form of

division (numerator divided by the denominator).

When there are exponents, look at the variables,

and for identical variables, subtract the exponents

(numerator exponents - denominator exponents).

If the result is negative, place the variable, with

exponent solution in the denominator, but as a

positive exponent.

If the result is positive, place it in the numerator.

Now, putting it into motion (you can handle the 16/28)

x variables: x5 * x3 = x5+3 = x8

x8 - x13 = x-5

place as x5 in the denominator

y variables: y5 - (-2) = y5+2 = y7

leave in the numerator as y7