Evaluate
-\frac{2\left(twz\right)^{2}}{3}
Differentiate w.r.t. t
-\frac{4t\left(wz\right)^{2}}{3}
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\frac{-2t^{2}wzw}{3}z
Express \frac{-2t^{2}wz}{3}w as a single fraction.
\frac{-2t^{2}wzwz}{3}
Express \frac{-2t^{2}wzw}{3}z as a single fraction.
\frac{-2t^{2}w^{2}zz}{3}
Multiply w and w to get w^{2}.
\frac{-2t^{2}w^{2}z^{2}}{3}
Multiply z and z to get z^{2}.
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