1. Factor. (2 marks each) a) 8 33 2 y = x x b) 12 11 2 y = x x + c) 7 6 2 y = x + x + d) 8 12 2 y = x x + e) 5 45 70 2 y = x + x + f) 0 64 2 y = x + x 2. State the y-intercept for each equation in question 1. (6 marks) 3. State the roots (x-intercepts) for each equation in question 1. (6 marks) 4. When it is useful to factor? (2 mark