Find each of the following products:
(3x+2y−4)×(x−y+2)
(3x+2y−4)×(x−y+2)3x+2y −4×x−y +2 –––––––––––––––––––3x2+2xy −4x −3xy −2y2+4y 6x +4y−8 –––––––––––––––––––––––––––––3x2−xy +2x−2y2+8y−8 ––––––––––––––––––––––––––––––––––=3x2−xy+2x−2y2+8y−8
(7x+2y)×(x+4y)
Find out which of the following equations have x=1, y=2 as solution. x + 2y = 5 2y - 3x + 3 = 0 3x + 4y - 8 = 0 [4 MARKS]