If f(x)=2x^2+1 and g(x)=x^2-7,find (f+g)(x)

Answer 1

(f+ g)(x) = 2x² + 1 + (x² - 7) = 3x² - 6

Answer 2

(f+g)(x) = f(x) + g(x) (Same thing but different notation)

f(x) = 2x² +1

g(x) = x² - 7

f(x) + g(x) = 2x² +1 + x² - 7

f(x) + g(x) = 2x² + x² + 1 - 7 (Grouping like terms together)

Final Answer: (f+g)(x) = 3x² - 6