11. Factorise : 27x + y + z? - 9xyz12. Verify that x + y2 +2° - 3xyz

1.	11. Factorise : 27x + y + z? - 9xyz12. Verify that x + y2 +2° - 3xyz = 5(x + y + z)2= (x + y + 2) [(x – 5)2 + (y - 3)2 + (2 – 1)]
Answer» Step-by-step EXPLANATION: PLZZZ MARK as BRAINLIST

11. Factorise : 27x + y + z? - 9xyz12. Verify that x + y2 +2° - 3xyz = 5(x + y + z)2= (x + y + 2) [(x – 5)2 + (y - 3)2 + (2 – 1)]

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Step-by-step EXPLANATION:

PLZZZ MARK as BRAINLIST

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11. Factorise : 27x + y + z? - 9xyz12. Verify that x + y2 +2° - 3xyz = 5(x + y + z)2= (x + y + 2) [(x – 5)2 + (y - 3)2 + (2 – 1)]​

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11. Factorise : 27x + y + z? - 9xyz12. Verify that x + y2 +2° - 3xyz = 5(x + y + z)2= (x + y + 2) [(x – 5)2 + (y - 3)2 + (2 – 1)]