book Maths Puzzle Numerical Ability

I have a problem 3x^0+(3x)^0. I am having a hard time figuring this problem out. Your help would greatly be appreicated.

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book Other Question

A number x squared plus forty-four is equal to the number x to the fourth power times three
How can i fugure this out by writing an equation?
what is 5/9 minus 3/8?