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Prove that: 2^13–2^10–2^9 is divisible by 13
1 answer:
Answer:
See below.
Step-by-step ,explanation:
2^13 – 2^10 – 2^9
Take out the GCF, 2^9 :
= 2^9 (2^4 - 2 - 1)
= 2^9(16 - 3)
= 13 * 2^9.
So it must be divisible by 13.
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