Question

factorise: (a+b)cube - 8
please solve line by line​

Answer 1

Answer:

hope this helps.

Step-by-step explanation:

use formula for a cube - b cube

Answer 2

Step-by-step explanation:

(a+b)³-8

8=2³

identity:x³-y³=(a-b)(a²+b²+ab)

let a+b be x

and 2 be y

facrors=(a+b-2)[(a+b)²+2²+2×(a+b)]

factors:(a+b-2)&(a²+b²+2ab+2a+2b)

hope u got it

(a+b)²=a²+b²+2ab

2×(a+b)=2a+2b

these are the brackets which I opened for getting the factors