Provide an appropriate response.Prove that the function f is not one-to-one.f(x) = 2 - x4
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Find two numbers a and b for which a ? b and f(a) = f(b). Two such numbers are -2 and 2 because f(-2) = f(2) = -14. Thus, f is not one-to-one.
Mathematics
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Factor.
A. 
B. 
C. 
D. 
E. 
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