Please help! answer quick and serious answers only pls

The table shows a pattern of exponents. what is the pattern as the exponents decrease?

Which of the following expressions is equal to 2x^2+8

Jack has a piece of red ribbon that is two times as long as his piece of blue ribbon. he says that he can use two different equation to find out how long his piece of red ribbon is compared to his piece of blue ribbon is. is he correct? explain his reasoning