Question

Factorise the following
1) (a-b)³+(b-c)³+(c-a)³ 2) (a-3b)³+(3b-c)³+(c-a)³
3) (28)³+(-15)³+(-13)³​

Answer 1

Answer:

The expression (a-b)³+(b-c)³ +(c-a)³ can be factorized as: A. (a-b)(b-c)(c-a) ... C. -3(a-b)(b-c)(c-a) D. (a+b+c)(a²+b²+c²-ab- bc-ca). 2. See answers ... (a-3b)3+(3b-c)3+(c-a )3.