worldrichie424 worldrichie424 17-01-2024 Mathematics contestada find the common factor and the highest common factor of each of the following expressions1. 15abc, 12bcd and 18ace2. 14xy,35y² and 49wyz3. 21abc²,28abc and 42abc²4. 20 ab, 51 CD and 62ef 5. 8x² and 7xy