Question

x√5 supra60-√80supra√15 =2007√3supra6

Answer 1

X√5/60-4√5/√15=2007√3/6
x√5/60-4√3/3=2007√3/6
x√5-80√3=20070√3
x√5=20070√3+80√3
x√5=20150√3
x=4030√15

Answer 2

x√5/60-4√5/√15=2007√3/6
x√5/60-4√3/3=2007√3/6
x√5-80√3=20070√3
x√5=20070√3+80√3
x√5=20150√3
x=4030√15
Asta am avut la test pentru olimpiada cl VII
Sper ca team ajutat