Question

calculati 4radical81-5radical49
1intregsi 4 cincimi*radicaldin 2500

Answer 1

Răspuns

1 ; 90 ;

Explicație pas cu pas:

4√81-5√49 = 4x9-5x7 = 36-35 = 1 ;

(1 4/5)x√2500 = (9/5)x50 = 9x10 = 90 ;