(y+4)*(y-2) = y^2 + 4y - 2y - 8 = y^2 + 2y - 8
(3x-5)*(2x+9) = 6x^2 + 27x - 10x - 45 = 6x^2 + 17x - 45
(m+1)*(m^2 - m + 3) = m^3 - m^2 + 3m + m^2 - m + 3 = m^3 + 2m + 3
(y+4)*(y-2) = y^2 + 4y - 2y - 8 = y^2 + 2y - 8
(3x-5)*(2x+9) = 6x^2 + 27x - 10x - 45 = 6x^2 + 17x - 45
(m+1)*(m^2 - m + 3) = m^3 - m^2 + 3m + m^2 - m + 3 = m^3 + 2m + 3