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29 March, 12:57

Let f (x) = 4 - x^2-, g (x) = 2 - x. Find (f + g) (x) and its domain.

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  1. 29 March, 14:51
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    (f+g) (x) = (2-x) (2+x) + (2-x) = (2-x) (2+x+1) = (x+2) * (x+3) = x^2+5x+6 & Domain=R
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