\frac{d}{{dx}}\left( {f\left( x \right)g\left( x \right)} \right) = f\left( x \right)\frac{d}{{dx}}g\left( x \right) + \frac{d}{{dx}}f\left( x \right)g\left( x \right)
% MathType!MTEF!2!1!+- % feaafaart1ev1aaatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbuLwBLn % hiov2DGi1BTfMBaeXatLxBI9gBaerbd9wDYLwzYbItLDharqqr1ngB % PrgifHhDYfgasaacH8YjY-vipgYlh9vqqj-hEeeu0xXdbba9frFj0- % OqFfea0dXdd9vqai-hGuQ8kuc9pgc9q8qqaq-dir-f0-yqaiVgFr0x % fr-xfr-xb9adbaqaaeGaciGaaiaabeqaamaabaabaaGcbaWaaSaaae % aacaWGKbaabaGaamizaiaadIhaaaWaaeWaaeaacaWGMbWaaeWaaeaa % caWG4baacaGLOaGaayzkaaGaam4zamaabmaabaGaamiEaaGaayjkai % aawMcaaaGaayjkaiaawMcaaiabg2da9iaadAgadaqadaqaaiaadIha % aiaawIcacaGLPaaadaWcaaqaaiaadsgaaeaacaWGKbGaamiEaaaaca % WGNbWaaeWaaeaacaWG4baacaGLOaGaayzkaaGaey4kaSYaaSaaaeaa % caWGKbaabaGaamizaiaadIhaaaGaamOzamaabmaabaGaamiEaaGaay % jkaiaawMcaaiaadEgadaqadaqaaiaadIhaaiaawIcacaGLPaaaaaa!584C!
Pasting the above "text" into MathType 5.0 will enter the above equation and make it possible to edit, save, and use in applications such as MS Word.
