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Simplify: 2^(55)xx2^(60)-2^(97)xx2^(18) ...

Simplify: `2^(55)xx2^(60)-2^(97)xx2^(18)` (ii) `2^3xxa^3xx5a^4`, `(3n+3^(n+1))/(3^(n+1)-3^n),` Where n is a natural numbers.

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RD SHARMA-EXPONENT-All Questions
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