Simplify the following expression to Scientific Notation: (9×10^16) ^2

(1 point)
Responses

Add exponents to get 81×10^32

Add exponents to get 9×10^18

Multiply exponents to get 18×10^32

Multiply exponents to get 8.1×10^31

Multiply exponents to get 8.1×10^33

Add exponents to get 8.1×10^17