Does anyone know how to factorise 3 - 3x?
yes (3-3x)= 3(1-x) so if you multiply 3 for 1 and -x you will have the 1st
3 - 3x
We find a number that can go into both 3 and -3. That number is 3, so we divide it into both of the numbers.
Answer: 3 (1 - x)