How to solve f(x)=3^X-4 +1?

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Answer 1 · 2018-05-29T09:32:29

#x = 1#

Assuming, #f(x) = 0#

We have,

#3^x - 4 + 1 = 0#

#:. 3^x - 3 = 0#

#:. 3^x = 3#

#:. 3^x = 3^1#

#:. x = 1# ... [ As the base is equal, so exponent also gets equal]

Hence, the answer.