Answer:
(f+g)(x) = x^2 +10x +7
Step-by-step explanation:
(f+g)(x) = f(x) +g(x) = (15x +7) +(x^2 -5x)
= x^2 +x(15 -5) +7
= x^2 +10x +7
A
Use POE, none of the answer makes any sense
14×x^4×y^6/7×x^8×y^2
2×x^-4×y^4
2×y^4/x^4
2y^4/x^4