Domains of functions

F(x)=x2-7x and g(x)=5-x2
Domain of (fg)(x) is. .. . .
Domain of (f/g)(x). ..

Result

a = (Correct answer is: R) Wrong answer
b = (Correct answer is: R - { x1,x2 }) Wrong answer

Step-by-step explanation:

a=R

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