Question

How do you factor `ac - 3ad - 2bc + 6bd`?

Answer 1

`(a-2b)(c-3d)`

Explanation:

`ac-3ad-2bc+6bd`

Factorise `a` out of the first two terms, and `-2b` out of the last two terms,

`a(c-3d)-2b(c-3d)`

Factorise `(c-3d)` from both terms,

`(a-2b)(c-3d)`

Tadaaa :D