Question

3.3 Factorise 15p² - 19pq+6q²​

Answer 1

(5p-3q)(3p-2q)

Explanation:

15p² - 19pq+6q²​

=15p²-10pq-9pq+6q² ∵{-10×-9=90, -10-9=-19 }and 15×6=90

=5p(3p-2q)-3q(3p-2q)

=(5p-3q)(3p-2q)