Hi,

I've been doing some math recently in school and I'm really confused as to how to work a few things out. I've been asked to 'factorise by extraction and grouping of a common factor from expressions with 2,3 and 4 terms respectively'. And I need help with some of the questions. If someone could be kind enough to include the answers plus how you worked it out.

Find the factors of:

1) cd + 6ce

2) ax + bx

3) m2n - 2mn2

4) 3x4y + 9x3y2 - 6x2y3

5) x2y2 - axy + bxy2

6) 5a + ax - 2b + by

7) ax + by + bx + ay

8) 6x2 + x - 15

9) 14x2 - 29x + 12

10)x2 - 16

Thanks!