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Elden [556K]
3 years ago
14

If f(x)=3x^2+2 and g(x)=x^2-9 find (f-g)(x)

Mathematics
2 answers:
miss Akunina [59]3 years ago
6 0

Here given, f(x) = 3x^2+2 and g(x) = x^2-9

we have to find (f-g)(x) which means the subtracting of the functions f(x) and g(x).

(f-g)(x) = f(x) - g(x)

= (3x^2+2) - (x^2-9)

= 3x^2+2 -x^2-(-9)

= 3x^2-x^2+2+9 ( we know that multiplication of negative and negative is positive)

= 2x^2+2+9

=2x^2+11

We have got the required answer here.

(f-g)(x) = 2x^2+11

Minchanka [31]3 years ago
5 0
The answer would be 2x²+11.

(f-g)(x)=f(x)-g(x)=3x²+2-(x²-9) = 3x²- x² + 2 --9 = 2x²+2+9 = 2x²+11
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