Question

let f(x)=10x^2+3 and g(x)=7-5x.find a.(f+g)(x)and b.(f-g)(x)

Answer 1

(f+g)(x) is just f(x) + g(x) so 10x^2 + 3 + 7 - 5x <--simplifiy to get the answer

(f-g)(x) is just f(x) - g(x) so 10x^2 + 3 - (7 - 5x) <--simplify to get the answer

does that help?

Answer 2

plz elaborate

Answer 3

ya thnks