Here we want to evaluate h(x) - g(x) given both functions
From the question; h(x) = 2x^2 + x -7
and also g(x) = -3x - 1
Thus; h(x) - g(x) will be;
2x^2 + x - 7 -(-3x -1)
= 2x^2 + x - 7 +3x + 1
= 2x^2 + x + 3x -7+1
= 2x^2 + 4x - 6
Hence, h(x) - g(x) = 2x^2 + 4x -6