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Question

Find the value of (243)n5×32n+19n×3n1

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Solution

(243)n/5×32n+19n×3n1=x
32=9 35=243
x=(243)n/5×32n+19n×3n1=(3)5n/5×32n+132n×3n1
x=32n+232n=33=27.

1061217_1115529_ans_e630f45131c44ae99b1a8902fb8e25e3.png

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