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وارد شوید

Mathematics for IGCSE & O level - Algebraic Manipulation (Section 5 - No. 4)

Given that x²-18x+81 is the product of the brackets. What bracket multiplied by itself gives this expression?
(x+9)
(x-9)
(x+9)(x-9)
(x+18)

توضیح

(x-9)²=x²-18x+81

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