itshilande07 itshilande07 13-05-2023 Mathematics Answered 1.1 1.2 Completely simplify the expressions below: 1.1.1 -3(2x - 4y)² 1.1.2 x+2 3 5 x+1 Completely factorise the expressions below: 1.2.1 ny + 4z + 4y + nz 1.2.2 3x² - 27x+60