Question

plz guys answer me ​

Answer 1

$\frac{ {2}^{30} + {2}^{29} + {2}^{28} }{ {2}^{31} + {2}^{30} - {2}^{29} } \\ \\ = \frac{ \cancel{2}^{28}( {2}^{2} + 2 + 1) }{ \cancel{2}^{28}( {2}^{3} + {2}^{2} - 2)} \\ \\ = \frac{4 + 2 + 1}{8 + 4 - 2} \\ \\ = \frac{7}{10}$

Thus Proved!

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