Please Explain in detail

1. Find the area of the region between y = 3x2 + 12 and y = 4x + 4 over [-3, 3] (Figure 12). 50 I y = 3x~ + 12 25 y = 4x + 4 # X -3 2 3 Rogawski et al., Calculus: Early Transcendentals, 4e, @ 2019 W. H. Freeman and Company FIGURE 122. Find the area of the region between the graphs of f (a) = 3x + 8 and g (z) = a2 + 2ac + 2 over [0, 2] (Figure 13). 20- f(x) = 3x + 8 10- g(x) =x2 +2x+2 + X 2 3 Rogawski et al., Calculus: Early Transcendentals, 4e, @2019 W. H. Freeman and Company