Factorise:

(i) x3 + x - 3x2 - 3 (iii) 6ab - b2 + 12ac - 2bc (v) x2 - 2 root 2 x - 30

(ii) a (a + b) - 3a2b (a + b) (iv) ( x2 + 1 / x2) - 4 ( x + 1 / x) + 6

plzzzzzzzzzz explain with reasons 4 every step . plzzzzz.....

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