This has me stumped

Find the absolute minimum and the absolute maximum of the function fix) = x3 + 3x2 - 24): on the interval [-5, 5]. State: absolute minimum is at (ab) aEMMenmnmumisaho) Estimate the area below the curve V: for x between t and 9 by Riemann sum: 1+x2 a) R (4 rectangles, right end points). b) L(4 rectangles, left end points) State Ra... L=