Mathematics for IGCSE & O level - Algebraic Manipulation (Section 6 - No. 9) | ExamPlay

Mathematics for IGCSE & O level - Algebraic Manipulation (Section 6 - No. 9)

What is the result of (x + 2)(x - 2)?

x^2 + 4

x^2 - 4

x^2 + 4x + 4

x^2 - 4x + 4

Explanation

Difference of squares: (x + 2)(x - 2) = x^2 - 4

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