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Mathematics for IGCSE & O level - Algebraic Manipulation (Section 4 - No. 41)

What is the factored form of x² - 14x + 49?
(x + 7)²
(x - 7)²
(x - 7)(x + 7)
(x - 2)(x - 24.5)

Объяснение

(x-7)² = x² - 14x + 49

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