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i need the answers.

Enter the number of complex zeros for the polynomial function f(x) = x 4+ 5x² +6

Which inequalities can be used to find the solution set of the following inequality? check all that apply. |2x – 5| (2x – 5) (2x + 5) –(2x – 5) –(2x + 5)

Which statement about the annual percentage rate (apr) is not true?