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3√3×(√6-√15)-4√2+4√5

Răspuns :

Clothos
3√3·√6-3√3·√15-4√2+4√5=
3√18-3√45-4√2+4√5=
3√(9·2)-3√(9·5)-4√2+4√5=
9√2-9√5-4√2+4√5=5√2-5√5
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3√3 • ( √6 — √15 ) — 4√2 + 4√5 ⇒ 3√3 • ( √6 — √15 ) — 4√2 + 4√5 = 3√18 — 3√45 — 4√2 + 4√5


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