the question translation is below :

\fExercise 1 (3 points): Determine the area of the region bounded by the curves of .f(x) = x2 + 3x and g(x) = 2x2 -3x on the interval [-1, 2]. (100; (B) 2; (C) 4; (D) 6; (E) 8; (E) 10