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Vynásob mnohočleny
Vynásob mnohočleny:
\large \left( x^{3} - 3x^{2} y + 3xy^{2} + 2y^{3 }\right) \cdot \left( 2x- 3y\right)
\large = 2{x^{4}} - 9{x^{3}}y + 15{x^{2}}{y^{2}} - 5 x{y^{3}} - 4{y^{4}}
\large = 2{x^{4}} - 6{x^{3}}y + 12{x^{2}}{y^{2}} - 4 x{y^{3}} - 6{y^{4}}
\large = 2{x^{4}} - 9{x^{3}}y + 14{x^{2}}{y^{2}} - 5 x{y^{3}} - 6{y^{4}}
\large = 2{x^{4}} - 9{x^{3}}y + 15{x^{2}}{y^{2}} - 5 x{y^{3}} - 6{y^{4}}