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(x2_6xy + 9y2)-25 |
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Answer» (x^2 - 6xy + 9y^2) - 25= (x - 3y)^2 - (5)^2 We know (a^2 - b^2) = (a +b)(a-b) = (x - 3y + 5)(x - 3y - 5) ans ty |
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