If f(x)=5x^2 and g(x)=x^2-4x-8, find (f-g)(x) !

Option B.

Step-by-step explanation:

(f-g)(x) = f(x)-g(x)

          = (5x²-3) - (x²-4x-8)

          =5x²-3 -x² +4x +8       ( - sign outside will multiply each sign inside)

         =4x² +4x + 5

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