Question

(a+b)³-(a-b)³ factorise plz ​

Answer 1

Step-by-step explanation:

see the attachment.

hope it helped.

pls mark as the brainliest ans...

Answer 2

Answer:

The anwer you'll get after factorising is :

$(2b)(3 {a}^{2} + {b}^{2} )$

Step-by-step explanation:

Let,

${(a + b)}^{} = x$

and,

${(a - b)}^{} = y$

Now,

Using identity,

${x}^{3} - {y}^{3} = (x - y)( {x}^{2} - xy + {y}^{2} )$

We get,

$(a + b - a + b)( {(a + b)}^{2} + (a + b)(a - b) + {(a - b)}^{2} ) \\ = (2b)( {a}^{2} + 2ab + {b}^{2} + {a}^{2} - {b}^{2} + {a}^{2} - 2ab + {b}^{2} ) \\ = (2b)(3 {a}^{2} + {b}^{2} )$

as your answer.