If 3 m -2-3 m -1-252- then m - -A- 7B- 2C- 5D- 3

The correct option is D 3 [ 3^m( 3^2 + 3^ 1) = 252; 3^m = 252 × 3/28 = 63 × 3/7 = 9 × 3 = 3^3; m = 3. ] ...

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If 3 m +2+3 m...

Question

If 3 $^{m + 2}$ + 3 $^{m - 1}$ = 252, then m = ?

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