prove that 2 power 30 + 2 power 29 + 2 power 28 upon 2 power 31 + 2 power 30 minus 2 power 29 is equals to 7 upon 10
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2 power 30 + 2 power 29 + 2 power 28 / 2 power 31 + 2 power 30 minus 2 power 29 is equals to 7 / 10
=2³⁰+2²⁹+2²⁸/2³¹+2³⁰-2²⁹
=2(2³⁰/2²⁸+2²⁹/2²⁸+2²⁸/2²⁸)/2²⁹(2³¹/2³⁹+2³⁰/2³⁹-2²⁹/2²⁹)
=2²⁸(2²+2+1)/2²⁹(2²+2-1)
=(4+2+1)/229-28(4+2-1)
=7/2(5)
7/10
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