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hoa [83]
3 years ago
14

Given that f(x) = x2 – 5x – 14 and g(x) = x – 7, find (f +g)(x) and

Mathematics
1 answer:
Angelina_Jolie [31]3 years ago
6 0

Answer:

(f+g)(x)=x^2-4x-21

Step-by-step explanation:

We are given:

f(x)=x^2-5x-14\text{ and } g(x)=x-7

And we want to find:

(f+g)(x)

This is equivalent to:

=f(x)+g(x)

Therefore, by substitution:

=(x^2-5x-14)+(x-7)

Rearranging gives:

=(x^2)+(-5x+x)+(-14-7)

Combine like terms:

=x^2-4x-21

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