(√2+2)^3 ^3 znaczy do potęgi 3
2√2+12+12√2+8=14√2+20 KONIEC proszę o brawa :>
(√2+2)³=(√2)³ + 3 *(√2)²*2 +3 *√2 * 2² +2³= 2√2 + 12 + 12√2 +8 =20 +14√2
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2√2+12+12√2+8=14√2+20 KONIEC proszę o brawa :>
(√2+2)³=(√2)³ + 3 *(√2)²*2 +3 *√2 * 2² +2³= 2√2 + 12 + 12√2 +8 =20 +14√2