We must first determine the derivative of a function before we can determine its zeros. This one is simple; we'll just use the power rule to evaluate each phrase individually.
Then we set the derivative equal to zero and solve for x
Given that this function cannot be factored, we can enter this into our calculator to determine the two x values. Obtaining two values
Beginner2023-03-14Added 5 answers
First, factor out an x:
Already, you can figure out that when x zero, f(x) is zero, so is one solution. Then, attempt to factor the quadratic. Unfortunately, in this case, you can't use factoring, so plug the numbers into the quadratic formula, which is in case you don't have it memorized:
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