Factorise: 8(x-3y)(x-3y)+4(x-3y)

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Solution

=> 8(x-3y)(x-3y)+4(x-3y) .................Taking 4(x-3y) as common
=> 4(x-3y)(2(x-3y)+1)
=>4(x-3y)(2x-6y+1)

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