Answer:
3ⁿ
Step-by-step explanation:
The nth term is:
3ⁿ
Hello,
a³-b³=(a-b)(a²+ab+b²)
x^6-27=(x²)³-3³=(x²-3)(x⁴+3x²+9)
Answer:
B) 3
Step-by-step explanation:
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7k/3 = 21
x 3 x3
7k = 63
/7 /7
k = 9
(7(9)/3 = 21 = 63/3 = 21 = 21 = 21)