Suppose that the functions R and S are defined for all real numbersAs follows.



Write the expressions for (R+S)(x) and (R.S)(x) and evaluate (r-s)(-1)

(R+S)(x) =

(R.S)(x) =

(r-s)(-1) =

(R+S)(x) = x-4 + 4x^2
(R-S)(x)  = x -4 - 4x^2
(R-S)(-1) = (-1)-4 -4(-1)^2  = -5 - 4 = -9

Can you do the rest?

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