Find x

Algebra Level 2

X^{x+1} + 3^{x} = 36


The answer is 2.

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1 solution

Tom Engelsman
Jan 22, 2018

The answer is really (per Wolfram Alpha):

x x + 1 + 3 x = 36 x = 2.43842 . x^{x+1} + 3^{x} = 36 \Rightarrow \boxed{x = 2.43842}.

A suggested correction is to enter x \lfloor x \rfloor for the answer.

I think x x and X X have two different values.

So X x + 1 + 3 x = 36 x = 2 X^{x+1} + 3^x = 36 \implies x =2 and X = 3 X =3

Munem Shahriar - 3 years, 4 months ago

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Good point there, Munem!

tom engelsman - 3 years, 4 months ago

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