If f(x) = 3x + 2 and g(x) = 2x – 2, what is (f – g)(x)?

Mathematics

2 answers:

dusya [7]3 years ago

7 0

I would assume that you subsitute as usual, but g is negative
(f-g)(x)=(3x+2)-(2x-2)
(f-g)(x)=3x+2-2x+2
(f-g)(x)=x+4

aivan3 [116]3 years ago

5 0

$f(x)=3x+2 \\
g(x)=2x-2 \\ \\
(f-g)(x)=f(x)-g(x)=3x+2-(2x-2)=3x+2-2x+2=\\
=x+4 \\ \\
\boxed{(f-g)(x)=x+4}$

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