Determine the largest rectangle that can be inscribed inside the cavities of the two curves:

y = –2(x – 6)2
&
y = 6x2 –12*Tx – 128 + 6*T2

check your typing, where do the T's come from all of a sudden in the second equation ?

is the first one the parabola
y = -2(x-6)^2 ?