Question

Subtract:

–3p² + 3pq + 3px from 3p(– p – a – r)

Answer 1

We have,

–3p² + 3pq + 3px and 3p(– p – a – r)

The required difference is given by 3p(– p – a – r) – (– 3p² + 3pq + 3px)

= – 3p² – 3ap – 3pr + 3p² – 3pq – 3px

= (– 3p² + 3p²) – 3ap – 3pr – 3pq – 3px  ...[Grouping like terms]

= – 3ap – 3pr – 3pq – 3px