2 years ago

Find the solution to 3 ^-x = x^ 3 + x to the nearest tenth.

Mathematics

1 answer:

galben [10]2 years ago

6 0

We can rewrite this by subtracting the right side to get

... 3^(-x) -x^3 -x = 0

A graphing calculator shows this to have a solution near x=0.5.

_____

There are no algebraic means for solving such a combination of exponential and polynomial functions.

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Step-by-step explanation:

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