Math
posted by mike .
find the area of the region bounded by the function y=x^2+5x4 and the xaxis

y = (x1)(x4)
so you want to integrate between the roots, in the interval [1,4]
a = ∫[1,4] x^2+5x4 dx
= 1/3 x^3 + 5/2 x^2  4x [1,4]
Now just evaluate at the ends and subtract.