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I need to figure out how to solve this without a calculator so can u please show me the steps I need to take

I need to figure out how to solve this without a calculator so can u please show me-example-1
User Orberkov
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solve the exponents first, like 2^30 is 1073741824 and 2^29 is 536870912 so if you get rid of those exposures you’re left with 1073741824-536870912 divided by 2. and if you subtract those then it’s 536870912 divided by 2 and the answer to that is 268435456. and then the problem on the right 2^28 you just solve that one. which you can do by doing 2*2=4*2=8*2=16*2=32 until you have multiplied it 28 times. (it’s not just 2*28.) and the answer to 2^28 is 268435456. which would give you the answer of C. The quantities are equal.
User Bowditch
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