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Mathematics for IGCSE & O level - Surds (Section 2 - No. 23)

Simplify (5 + √3)(2 - √3).
7 - 3√3
13 - 3√3
7 + 3√3
13 + 3√3

Forklaring

(5 + √3)(2 - √3) = 10 - 5√3 + 2√3 - 3 = 7 - 3√3

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