Question

2√3(√3-√5)-2√15-6
va rog! ​

Answer 1

2√3(√3-√5)-2√15-6

2√3•√3-2√3•√5-2√15-6

2•3-2√15-2√15-6

6-2√15-2√15-6

=-4√15

6 cu 6 se simplifică