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Sagnik Mandal from Don Bosco Park Circus, Kolkata

Subject :IMO Class : Class 8

If × 3^x – 3^x – 1 = 81, then the value of x is ____.

A 2
B 1
C 3
D 0

None of the answers are matching

Ans 1:

Joshua Sen from Montfort Senior Secondary School, Roorkee

it doesnt show that the -1 is part o exponent

Aditya Kumar Shukla from DPS international, GURGAON

Admin from revisewise, Noida

The correct answer is C.