Question 499523
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What you posted in this parcel and called it "equation", is not an equation, at all.


What you call "equation" here, has other name, and this name is an "expression".


Also, an equation NECESSARY must have an ' = ' sign, while your formula does not have it.



Also, when you write an equation, there is no any need to introduce special designation f(x) for its left side.



It tells me that a person who composed it
is not familiar on how to write properly in Math.