Try another version of this question Box 1: Enter your answer as an expression. Example: 3x^2+1, x/5, (a+b)/c
Simplify. Use the definition of a negative exponent to write all exponents as positive.
`(4 r^-10 y^-7)(2 r^-1 y^12)`
Be sure your variables match those in the question `8 r^-11 * y^5`