A simply supported beam is subjected to distributed loads w1 and w2 as shown. The bending moment

Question:

A simply supported beam is subjected to distributed loads w1 and w2 as shown. The bending moment as a function of x is given by the following equations:
M(x) = RAx €“W1x2/2 for 0 M(x) = RAx €“ w1a/2 (2x €“ a) for a M(x) = RB(L €“ x) €“ w2(L €“ x)2/2 for (a + b) where RA = [w1a(2L - a) + w2c2]/(2L) and RB = [w2c(2L - a) + w1a2]/(2L) are the reactions at the supports. Make a plot of the bending moment M as a function of x (one plot that shows the moment for 0