factorise:
4x^2+9y^2-12xy
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Answer:
(2x-3y)(2x-3y)
Step-by-step explanation:
4x²-12xy+9y²
4x²-6xy-6xy+9y²
2x(2x-3y)-3y(2x-3y)
(2x-3y)(2x-3y)
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