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5(radical din 5 +2 radical 7)+2(raical7+3radical5)​

Răspuns :

Hei !

5(radical din 5 +2 radical 7)+2(radical7+3radical5)​

5(√5 + 2 √ 7) + 2 ( √7  + 3√5 )

5√5 + 10√7 + 2√7 + 6√5

11√5 + 12√7

[tex]5( \sqrt{5} + 2 \sqrt{7} ) + 2( \sqrt{7} + 3 \sqrt{5} )[/tex]

[tex]5 \sqrt{5} + 10 \sqrt{7} + 2 \sqrt{7} + 6 \sqrt{5} [/tex]

[tex]11 \sqrt{5} + 12 \sqrt{7} [/tex]