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grandymaker [24]
2 years ago
11

Pls pls pls pls help

Mathematics
1 answer:
nasty-shy [4]2 years ago
6 0

Answer:

(f+g)(3)=20

Step-by-step explanation:

(f+g)(3)=f(3)+g(3)\\\\=(x^{2} +3x-7)+(5x-3)\\=((3)^2+3(2)-7)+(5(3)-3)\\=(9+6-7)+(15-3)\\=8+12\\=20

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