-2
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(f+g)(x) = 4x + 8 + 5x -6 => (f+g)(x) = 9x + 2
In mathematics it could represent the combination of two functions. e.g. f = 2x + 3 g = 5x + 9 Hence fg = f(g) = 2(5x + 9) + 3 fg = 10x + 18 + 3 fg = 10x + 21
find f'(x) and f '(c)f(x) = (x^3-3x)(2x^2+3x+5
Answer is D.73
It is 1.2164