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Mathematics for IGCSE & O level - Equations (Section 4 - No. 6)

If the product of two binomials results in x² - 9, what is the result of the binomials?
(x - 3)(x - 3)
(x + 3)(x + 3)
(x + 3)(x - 3)
(x - 9)(x + 1)

Vysvětlení

(x+3)(x-3) = x² - 9

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