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11-06-2018
Mathematics

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[tex] {3}^{4} \times {3}^{5 } +2(5 - 2 \times 5) - {(4 + 2)}^{2} [/tex]

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11-06-2018

[tex]3 {}^{4} \times {3}^{5} + 2(5 - 2 \times 5) - (4 + 2) \\ = 3 {}^{4 + 5} + 2(5 - 10) - (6) \\ = 3 {}^{9} + 2( - 5) - 6 \\ = 3 {}^{9} - 10 - 6 \\ = 19667[/tex]

3^4 × 3^5 Is the same as 3^9.

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