2xy(-3x+4y)-(x-2y)(2x^2-xy-3y^2)
tolong dijawab ceffat ya kack
tolong dijawab ceffat ya kack
2xy ( -3x + 4y ) - ( x - 2y ) ( 2x² - xy - 3y² )
=> -6x²y + 8xy² - ( x - 2y ) ( 2x² - xy - 3y² )
=> -6x²y + 8xy² - 2x³ + 5x²y + xy² - 6y³
=> -2x³ - 6x²y + 5x²y + 8xy² + xy² - 6y³
=> -2x³ - x²y + 8xy² + xy² - 6y³
=> -2x³ - x²y + 9xy² + 6y³