Question

which expression is equal to (f+g)(x)
f(x)=x(exponent2) + 10;g(x) = x - 3
A) 2x(exponent2) +7
B)x(exponent2) + x + 7
C) x(exponent2) + x + 13
D) 7 x(exponent2) + x - 3

Answer 1

(f+g)(x)=f(x)+g(x)=x(exponent2) +10+x - 3=x(exponent2) + x + 7