Question

Hello
Can anyone help me multiply this
(x^2+2(delta)x+delta(x)^2) (x+delta(x))

Answer 1

x^2 +2(dx) +(dx)^2
x+(dx)
------------------
x^3 +2x(dx) + x(dx)^2

x^2(dx) +2(dx)^2 +(dx)^3
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x^3 +x^2(dx) +2x +2(dx)^2 +x(dx)^2 +(dx)^3 if i did it right

Answer 2

\[(x^2+2\Delta x + \Delta ^2 x )(x+\Delta x)\]

Answer 3

just seeing if i could write it. i am sure sensei is correct.