Step-by-step explanation:
12. n^2+2n
if you insert 1 for k and then work up by inserting 2 for k and adding those together and stoping at n.
13. 8-2(2^n)
if you insert 3 for k and then work up by inserting 4 for k and adding those together and keep on going but stopping at n.
Hope that helps :)
Answer:
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5.
2[(8−4)5/8]
= 2[4*5 / 8]
= 2 * 2.5
= 5.
− 4 n − 5
Simplify the expression.
Answer:12-14
