Question

(a-b)^3-4(a-b) factorise it​

Answer 1

Solution:

(a-b)³-4(a-b)

Take (a-b) common, we get

= (a-b)[(a-b)²-4]

= (a-b)[(a-b)²-2²]

=(a-b)(a-b+2)(a-b-2)

/* we know the algebraic identity:

x²-y² = (x+y)(x-y) */

••••

Answer 2

Answer:

Step-by-step explanation: