factorise by splitting the middle term x*x-12xy+6y*y
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Step-by-step explanation:
x^(2) - 12xy + 36y^(2)
= x^(2) - 6xy - 6xy + 36y^(2)
= x (x - 6y) - 6y (x - 6y)
= (x - 6y) (x - 6y)
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