Pls pls pls pls help

1 answer:

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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