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38 votes
38 votes
I need help with #21 ASAP.. I need to get it done…. Show step by step please help me with it.. I need to get it done tonight it is passed due

I need help with #21 ASAP.. I need to get it done…. Show step by step please help-example-1
I need help with #21 ASAP.. I need to get it done…. Show step by step please help-example-1
I need help with #21 ASAP.. I need to get it done…. Show step by step please help-example-2
User Vanessa
by
2.6k points

1 Answer

24 votes
24 votes

Explanation:

21.

1, 2, 4, 8, 16, 31, ... , ....

by using the formula, we can find :

T7 = [7⁴ - 6(7)³ +23(7)² - 18(7) +24] / 24 =

(2401 - 2058 + 1127 - 126 +24) / 24 =

1368/ 24 = 57

T8 = [8⁴-6(8)³+23(8)²-18(8)+24]/24 =

(4096-3072+1472-144+24)/24 =

2376/ 24 = 99

User Pauel
by
2.8k points
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