Question

HELP ;-; plz khan academy

Answer 1

-15r^2 + 2r +8

Explanation:

Simply add the values together and you have a simplified equation. Now you can plug in any value for "r."

Answer 2

- 15r² + 2r + 8

Explanation:

M + T

= - 8r² + 11r - 6 - 7r² - 9r + 14 ← collect like terms

= (- 8r² - 7r²) + (11r - 9r) + (- 6 + 14)

= - 15r² + 2r + 8