factor identities 9 x square - 24 X Y + 16 y square
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Step-by-step explanation:
9x² - 24 xy + 16y²
=9x² - (12 + 12)xy + 16y²
=9x² - 12xy - 12xy + 16y²
= 3x(3x - 4y) - 4y(3x - 4y)
= (3x - 4y)(3x - 4y)
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Alternative
9x² - 24xy + 16y²
=(3x)² - 2*3x*4y + (4y)²
=(3x - 4y)². [a² - 2ab + b² = (a - b)²]
=(3x - 4y)(3x - 4y). [ a² = a * a]
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