4 years ago

Find (f+g)(x) for the following functions. f(x) = 14x2 + 8x + 12 g(x) = 9x + 4

Mathematics

2 answers:

lawyer [7]4 years ago

6 0

Answer:

all work is shown and pictured

bearhunter [10]4 years ago

3 0

Answer:

$\large\boxed{(f+g)(x)=14x^2+17x+16}$

Step-by-step explanation:

$(f+g)(x)=f(x)+g(x)\\\\f(x)=14x^2+8x+12,\ g(x)=9x+4\\\\\text{Substitute:}\\\\(f+g)(x)=(14x^2+8x+12)+(9x+4)\qquad\text{combine like terms}\\\\(f+g)(x)=14x^2+(8x+9x)+(12+4)\\\\(f+g)(x)=14x^2+17x+16$

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