If y=2x+4x^3+3x^4 and z=(1+x)^2, find dy/dx and dz/dx.
Differentiation dy/dx = 2+12x^2+12x^3
Chain ruleu = 1+xz=u^2dz/dx = dz/du * du/dx = 2u * 1 = 2(1+x)
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