The functions f and g are integral. integral f(x)dx = 2, integral f(x)dx = - 5, and integral f(x)dx = -7. Find the values of the following definite integrals. integral^4 f(x)dx = integral^2 f(x)dx = integral^7_2 f(x)dx = integral^7_4 f(x)dx = integral^7_2 [g(x) - f(x)]dx = integral^7_2 [6g(x) - f(x)]dx =