Answer:
Step-by-step explanation:
here's your answer step by step with complete explanation please don't forgot to do star and also commented rate my answer
26
Explanation:
simplify
any variable to the power 0 is 1
integrating 1 gives x
apply limits
add terms
60
1/2 of 80 is 40.1/4 is 20.40 plus 20 equals 60.
13, 26, 39, 52, 65, 78, 91, 104, 117
-x²+9x+4
Hope this helps!