Question

ajutor nu stiu sa rezolv

Answer 1

Mai intai se descompun radicalii

243 | 3

81 | 3

27 |3

9 | 3

3 | 3

1 => V243=9V3

32 | 2

16 | 2

8 | 2

4 | 2

2 | 2

1 => V32=4V2

27 | 3

9 | 3

3 | 3

1 => V27 = 3V3

2V2*[2*9V3+2*(4*4V2-3*3V3)]

2V2*[18V3+2*(16V2-9V3)]

2V2*[18V3+32V2-18V3]

2V2*32V2=64*2=128