Question

How do you factor the expression `4 - 2q - 6q + 3pq`?

Answer 1

`(2-q)(2-3q)`

Explanation:

There is no common factor throughout, so group the terms. There MUST be a + sign between the groups.

`(4-2q)+(-6q+3pq)`

=`2(2-q) -3q(2-q)" note the change in signs"`

=`(2-q)(2-3q) " there is a common bracket"`