STEP-BY-STEP SOLUTION:
So here is the expression as displayed below:
= 3x ( 4 - 8y ) + 3 ( 2xy - 5x )
First of all, we will expand the expression as displayed below:
= 3x ( 4 - 8y ) + 3 ( 2xy - 5x )
= 12x - 24xy + 6xy - 15x
Then, we will collect like terms as displayed below:
= 12x - 24xy + 6xy - 15x
= - 3x - 18xy
After that, we will take out the common factor and factorise as displayed below:
= - 3x - 18xy
= - 3x ( 1 + 6y )
Therefore, the final answer is:
- 3x ( 1 + 6y )