exam
Maths Puzzle
Numerical Ability
Which term prevents the following expression from being considered polynomial?
F(x)= 1/√2 x^4-1/√5 x^3-7x^-2+1.4x+21
A. -7x-2
B. 1/√2 x^4
C. -1/√5 x^3
D. 1.4x
E. 21
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