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Find two functions f and g such that h(x) can be expressed as the function indicated. h(x) = 4x + x2; f − g?

Answer 1

Julia Adams

#f(x)=x^2, and, g(x)=-4x#.
Then, #(f-g)(x)=f(x)-g(x)=x^2-(-4x)=x^2+4x=h(x)#.

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Answer 2

Jace Anderson

( f(x) = x^2 ) and ( g(x) = -4x )

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Answer from HIX Tutor

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

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