Zredukuj wyrazy podobne a + 3b + 4c - 4c - 2b - 6a= 7xy - 12xy + 3x²y - 6x²y + 2xy 15x + 8y +20x²y + 3x +11x²y² - 10xy² + x - 2y

a + 3b + 4c - 4c - 2b - 6a=b-5a 7xy - 12xy + 3x²y - 6x²y + 2xy= -3xy-3x²y 15x + 8y +20x²y + 3x +11x²y² - 10xy² + x - 2y=19x-6y+20x²y+11x²y²-10xy²

a+3b+4c-4c-2b-6a= -5a+b 7xy - 12xy + 3x²y - 6x²y + 2xy= -7xy-3x²y 15x + 8y +20x²y + 3x +11x²y² - 10xy² + x - 2y=16x+6y+20x²y +11x²y²- 10xy²