Find each of the following products:
(3m – 4n) × (2m – 3n)
By using horizontal method,
We have;
= (3m – 4n) × (2m – 3n)
= 3m(2m – 3n) – 4n(2m – 3n)
= 6m2 – 9mn – 8mn + 12n2
= 6m2 – 17mn + 12n2