Answer:
Refer to the picture above.
To note: a^2 - b^2 is the expanded form of (a+b) (a-b).
Factorisation means pulling like terms out and combining them together.
Answer:(a+b)(a-b-x)
Step-by-step explanation:
a^2-b^2-ax-bx
(a-b)(a+b)-x(a+b)
(a+b)(a-b-x)
