Find the interval(s) for which f(x) is increasing, i.e., where f '(x) > 0. f ( x ) : WIN x3 + 8x2 - 40x + 2 OA) (10, 0. ) O B) (-00, - 10) (2, 20) O C) (-09, - 2) (10, 0. ) OD) (-09, - 10 )Write the expression as a sum, difference, or multiple of logarithms. Part of the logarithm may be determined exactly. 10810(40)4 A) 4108104 + 4 B) 108104 + 4 C) 4108104 + 3 D) 4108104 + 5