Mathematics
By using standard formulae, expand the following:
(x-2y)(x-3y)
Expansions
21 Likes
Answer
We know that (x-a)(x-b) = x2 - (a + b)x + ab
∴ (x-2y)(x-3y) = x2 - (2y + 3y)x + (2y)(3y)
= x2 - 5xy + 6y2
Answered By
13 Likes
|
By using standard formulae, expand the following:
(x-2y)(x-3y)
21 Likes
We know that (x-a)(x-b) = x2 - (a + b)x + ab
∴ (x-2y)(x-3y) = x2 - (2y + 3y)x + (2y)(3y)
= x2 - 5xy + 6y2
Answered By
13 Likes