Suppose that the functions f and g are defined for all real numbers x as follows. f(x)=x+1 g(x) = 3x² Write the expressions for (f-g)(x) and (f.g)(x) and evaluate (f+g)(-1). (f- g)(x) = (f⋅g)(x) = (f+g)(-1) = [ X 5

Q: answers were wrong.

A: X Frequency 0 2 1 6 2 8 3 36 4 50 5 68 6 55 7 36 8 19 9 10 10 4

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A: I have appended the formula used in the solution part of the question