In the third degree polynomial function f(x) =x^3 + 4x, why are 2i and -2i zeros?
1 answer:
Answer:
We just need to evaluate and get f(2i)=0, f(-2i)=0.
Step-by-step explanation:
Since
, then
, and we can apply this when we evaluate
for 2i and -2i.
First we have:

Which shows that 2i is a zero of f(x).
Then we have:

Which shows that -2i is a zero of f(x).
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Answer:
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Step-by-step explanation:
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Answer:
The two solutions of the equation is (0,-4)(6,0).
75 1/3 = 75.33
75.33% = 75.33/100
= 7533/10000
not sure if it can be simplified more than this