The number of points of discontinuity of y = f(x) where f(x)=32u2+5u−3  and u=1x+2 is

u is discontinuous at x = - 2, f(x) is discontinuousat u=12,−3 when u=−3⇒x=−73, u=12⇒x=0Hence f is discontinuous at x=−73,−2,0