A. 3^n 3^20
b.N^n N^20
c.12^n 12^9
d.237^n 237^4
Answer:for the one with 16 is 28 and the one with 7 is 4
Step-by-step explanation:
Answer:
8500
Step-by-step explanation:
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Answer:
Step-by-step explanation:
49b² - 81 = (7b)² - 9 ²
by identity : 49b² - 81 = (7b - 9)( 7b + 9)