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Hola.
![\mathsf{\dfrac{3x}{5x^{2}}\times\dfrac{-6x^{2}}{x}=}\\\\\\ \mathsf{\dfrac{3x\times(-6x^2)}{5x^{2}\times x}=}\\\\\\ \mathsf{\dfrac{-18x^3}{5x^{3}}=}\\\\\\ \mathsf{\dfrac{-18\times x^3}{5\times x^{3}}=}\\\\\\ \mathsf{\dfrac{-18\times\diagup\!\!\!\!x^3}{5\times\diagup\!\!\!\!x^{3}}=}\\\\\\ \boxed{\mathsf{\dfrac{-18}{5}=3,6}} \mathsf{\dfrac{3x}{5x^{2}}\times\dfrac{-6x^{2}}{x}=}\\\\\\ \mathsf{\dfrac{3x\times(-6x^2)}{5x^{2}\times x}=}\\\\\\ \mathsf{\dfrac{-18x^3}{5x^{3}}=}\\\\\\ \mathsf{\dfrac{-18\times x^3}{5\times x^{3}}=}\\\\\\ \mathsf{\dfrac{-18\times\diagup\!\!\!\!x^3}{5\times\diagup\!\!\!\!x^{3}}=}\\\\\\ \boxed{\mathsf{\dfrac{-18}{5}=3,6}}](https://tex.z-dn.net/?f=%5Cmathsf%7B%5Cdfrac%7B3x%7D%7B5x%5E%7B2%7D%7D%5Ctimes%5Cdfrac%7B-6x%5E%7B2%7D%7D%7Bx%7D%3D%7D%5C%5C%5C%5C%5C%5C+%5Cmathsf%7B%5Cdfrac%7B3x%5Ctimes%28-6x%5E2%29%7D%7B5x%5E%7B2%7D%5Ctimes+x%7D%3D%7D%5C%5C%5C%5C%5C%5C+%5Cmathsf%7B%5Cdfrac%7B-18x%5E3%7D%7B5x%5E%7B3%7D%7D%3D%7D%5C%5C%5C%5C%5C%5C+%5Cmathsf%7B%5Cdfrac%7B-18%5Ctimes+x%5E3%7D%7B5%5Ctimes+x%5E%7B3%7D%7D%3D%7D%5C%5C%5C%5C%5C%5C+%5Cmathsf%7B%5Cdfrac%7B-18%5Ctimes%5Cdiagup%5C%21%5C%21%5C%21%5C%21x%5E3%7D%7B5%5Ctimes%5Cdiagup%5C%21%5C%21%5C%21%5C%21x%5E%7B3%7D%7D%3D%7D%5C%5C%5C%5C%5C%5C+%5Cboxed%7B%5Cmathsf%7B%5Cdfrac%7B-18%7D%7B5%7D%3D3%2C6%7D%7D)
![\mathsf{\dfrac{9y^{2}}{2y}\times\dfrac{-3y}{4y^{3}}=}\\\\\\ \mathsf{\dfrac{9y^{2}\times(-3y)}{2y\times4y^3}=}\\\\\\ \mathsf{\dfrac{-27y^{3}}{8y^4}=}\\\\\\ \mathsf{\dfrac{-27\times y^{3}}{8y\times y^3}=}\\\\\\ \mathsf{\dfrac{-27\times\diagup\!\!\!\!y^{3}}{8y\times\diagup\!\!\!\!y^3}=}\\\\\\ \boxed{\mathsf{\dfrac{-27}{8y}}} \mathsf{\dfrac{9y^{2}}{2y}\times\dfrac{-3y}{4y^{3}}=}\\\\\\ \mathsf{\dfrac{9y^{2}\times(-3y)}{2y\times4y^3}=}\\\\\\ \mathsf{\dfrac{-27y^{3}}{8y^4}=}\\\\\\ \mathsf{\dfrac{-27\times y^{3}}{8y\times y^3}=}\\\\\\ \mathsf{\dfrac{-27\times\diagup\!\!\!\!y^{3}}{8y\times\diagup\!\!\!\!y^3}=}\\\\\\ \boxed{\mathsf{\dfrac{-27}{8y}}}](https://tex.z-dn.net/?f=%5Cmathsf%7B%5Cdfrac%7B9y%5E%7B2%7D%7D%7B2y%7D%5Ctimes%5Cdfrac%7B-3y%7D%7B4y%5E%7B3%7D%7D%3D%7D%5C%5C%5C%5C%5C%5C+%5Cmathsf%7B%5Cdfrac%7B9y%5E%7B2%7D%5Ctimes%28-3y%29%7D%7B2y%5Ctimes4y%5E3%7D%3D%7D%5C%5C%5C%5C%5C%5C+%5Cmathsf%7B%5Cdfrac%7B-27y%5E%7B3%7D%7D%7B8y%5E4%7D%3D%7D%5C%5C%5C%5C%5C%5C+%5Cmathsf%7B%5Cdfrac%7B-27%5Ctimes+y%5E%7B3%7D%7D%7B8y%5Ctimes+y%5E3%7D%3D%7D%5C%5C%5C%5C%5C%5C+%5Cmathsf%7B%5Cdfrac%7B-27%5Ctimes%5Cdiagup%5C%21%5C%21%5C%21%5C%21y%5E%7B3%7D%7D%7B8y%5Ctimes%5Cdiagup%5C%21%5C%21%5C%21%5C%21y%5E3%7D%3D%7D%5C%5C%5C%5C%5C%5C+%5Cboxed%7B%5Cmathsf%7B%5Cdfrac%7B-27%7D%7B8y%7D%7D%7D)
Buenos estudios.
Buenos estudios.
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