Question

factorise a-b-a³+b³​

Answer 1

a - b - a3 + - a + b3

= a - b - (a - b)

we know,

A3 - B3 = (A - B) (A? + AB + B2)

use this, =

= (a - b) - (a - b) (a2 + ab + b2)

= (a - b) {1 - (a² + ab + b3)}

= (a - b) (1 - a - ab - b2)

Answer 2

Answer:

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