Question

Factorise: a + b - a³ - b³

Answer 1

Answer:

(a+b)-(a^3+b^3). (a^3+b^3)=(a+b)(a^2-ab+b^2)

(a+b)-(a+b)(a^2-ab+b^2). taking a+b common

(a+b){1-(a^2-ab+b^2)

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Answer 2

Answer:

Step-by-step explanation:

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