ExamPlay Light Logo
Se connecter

Mathematics for IGCSE & O level - Surds (Section 1 - No. 49)

What is the value of (√5+√7)(√5-√7)?
2
-2
12
-12

Explication

(√5+√7)(√5-√7) = 5-7 = -2

Commentaires (0)

Publicité