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tatiyna
3 years ago
8

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

Mathematics
2 answers:
Akimi4 [234]3 years ago
5 0

Answer:

B. 2x^2+\frac{3x}{2}-5

Step-by-step explanation:

Given functions,

f(x)=\frac{x}{2}-2

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

Since, (f+g)(x) = f(x) + g(x)

=\frac{x}{2}-2+2x^2+x-3

=2x^2+\frac{x+2x}{2}-5    ( combine like terms )

=2x^2+\frac{3x}{2}-5

Option 'B' is correct.

Lelu [443]3 years ago
4 0
Hello : 
<span>If f(x)=x/2-2 and g(x)=2x^2+x-3, find (f+g)(x)
</span>(f+g)(x)= f(x) +g(x) = x/2-2  +2x²+x-3 = x/2 +2x²+x-5
(f+g)(x)= (x+4x²-2x-10) /2
(f+g)(x)= (4x²+3x-10)/2 = 2x²+3/2 x -5
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