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A sheet metal fabrication technician is determining the dimensions of a custom square-based ventilation duct. The cross-sectional area of the duct is represented by the algebraic expression 8x2y24xy+18y{}8x^2y - 24xy + 18y. To find the dimensions, the technician first factors out the greatest common factor (GCF) of 2y{}2y to get 2y(4x212x+9){}2y(4x^2 - 12x + 9). To finalize the dimensions, the technician must recall the perfect square trinomial pattern to factor the remaining part, 4x212x+9{}4x^2 - 12x + 9, as the square of a single binomial. What is the binomial that, when squared, equals 4x212x+9{}4x^2 - 12x + 9? (Write your answer in the standard form axbax - b, with no parentheses or exponents, using spaces around the operator: ____ )

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Updated 2026-06-01

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