Question

Paranteza rotunda 14 supra 3 radical din 7 minus 15 supra 2 radical din 175 inchidem paranteza plus dechide paranteza rotunda 3 radical din 28 supra 4 minus 2 supra radical din 63 inchidem paranteza plus dechidem paranteza rotunda radical din 7 supra 2 minus 14 supra radical din 28 inchidem paranteza

Answer 1

Răspuns:

(14/3rad7-15/2rad175)+(3rad28/4-2/rad63)+(rad7/3-14/rad28)

(14/3rad7-15/10rad7)+(6rad7/4-2/3rad7)+(rad7/3-7/rad7)

19/6rad7+3rad7/2-2/3rad7+rad7/3-7/rad7

19rad7/42+3rad7/2-2rad7/21+rad7/3-rad7

19rad7/42+63rad7/42-4rad7/42+14rad7/42-42rad7/42

(19rad7+63rad7-4rad7+14rad7-42rad7)/42

50rad7/42

25rad7/21