Answer:
Sorry this seems like an entire project, please ask one question at a time.
Step-by-step explanation:
Brainly rules.
so, let's first change the bounds from 1 to 9, so we'll be dropping the indices by 1, in order to do the variable "n".
however, let's use a variable hmmm say "k", where "k" is the value of "n" beginning at 1, thus
k = n - 1.
however, if k = n - 1, then
k + 1 = n. So let's use those fellows then,
Answer:
60
Step-by-step explanation:
Hope that helps! :)
Answer:
-3x^2 + 11x -3
Step-by-step explanation:
1st. Rewrite.
2nd. Remove the parentheses.
3rd. Collect like terms.
4th. Calculate.