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Mathematics for IGCSE & O level - Algebraic Manipulation (Section 5 - No. 41)

What is the factored form of x^2 + 6x + 9?
(x+3)(x+3)
(x-3)(x-3)
(x+3)(x-3)
(x-3)(x+1)

Wyjaśnienie

The factored form of x^2 + 6x + 9 is (x+3)(x+3), which is also (x+3)^2

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