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CALCULATI : (4√2-√8)*√2

Răspuns :

(4√2-√8 )*√2
Desfacem paranteza:
4√2 *√2-√8*√2
8-4=4
 
[tex](4 \sqrt{2}- \sqrt{8})* \sqrt{2}= \\ \sqrt{8}=2 \sqrt{2} \\ (4 \sqrt{2}-2 \sqrt{2})* \sqrt{2}=2 \sqrt{2}* \sqrt{2 } =2 \sqrt{4} [/tex]
[tex]2 \sqrt{4}=2*2=4 \\ \sqrt{4}=2[/tex]