Question

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6. Factorise : ab(a+b)+bc(b + c)+ca(c+a)+3abc
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Answer 1

Answer:

(a+b+c)(ab+bc+ca)

Step-by-step explanation:

ab(a+b)+bc(b+c)+ca(c+a)+3abc

or,

ab(a+b)+abc+bc(b+c)+abc+ca(c+a)+abc

or,

ab(a+b+c)+bc(b+c+a)+ca(c+a+b)

or,

(a+b+c)(ab+bc+ca).

Answer 2

Answer:

bvbnvmbhkdfkfjdornvkndogjdokenbpbslbjndkr