how do you find the domain in the following equation f(x)=(√2x+4)^3 i know how to do most part of it, but been having problems to understand the purpose of the 3. can someone explain how to solve the whole problem??
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Is all of the 2x + 4 under the square root sign? If so then domain is x >= -2 because square root cannot operate on negative numbers for real output.
The upper 3 makes the cube of the result of the square root part. This doesn't affect the domain.
The upper 3 makes the cube of the result of the square root part. This doesn't affect the domain.