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17-09-2018
Mathematics

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Which expression is equal to 5^4⋅5^8 ? 512 54 52 5−4

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jimthompson5910 jimthompson5910

17-09-2018

Answer is 5^12 which is choice A (assuming you meant to put the ^ symbol)

The bases are the same (both are 5), so you add the exponents: 4+8 = 12. The base stays the same the entire time.

So, 5^4*5^8 = 5^(4+8) = 5^12

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