1.

Facorise 9x2 - 12xy + 4 y2 answer??

Answer»

Step-by-step explanation:

9x^2 - 12xy + 4y^2 = (3x)^2 - 12xy + (2y)^2

=> (3x - 2y)^2 = 9x^2 + 4y^2 - 12xy

=> (3x - 2y)^2 = (3x + 2y) (3x - 2y)

Answer) (3x + 2y) (3x - 2y)



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