Question

please hellllllllppppppppppppppppppppppppppp

Answer 1

Answer:

$21^{10}$

Step-by-step explanation:

First, multiply the 3 and the 7 together, and then "multiply" the exponents -8 and 3. (However, when "multiplying exponents, you're really just adding them together: -8 + 5)

($21^{-5}$)^2

Then, multiply the -5 and -2 together, giving you:

$21^{10}$