Write an explicit formula for an, the nth term of the sequence 27, 21, 15, ….
1 answer:
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Working attached below. Hope this helps! Any questions let me know :)
Answer:
x = ± 4
Step-by-step explanation:
given 3x² = 48 ( divide both sides by 3 )
x² = 16 ( take the square root of both sides )
x = ± = ± 4
x ∈ {- 4, 4 }