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16√14 - √21x = 2√14

Răspuns :

16√14 - √21x = 2√14
√21x=14√14
x=14√14/√21 
x=14√2/√3
x=14√2√3 /3
x=14√6/3
16√14 - √21x = 2√14
-√21x=-14√14 |·(-1) (inmultesti totul cu -1)
√21x=14√14
x=[tex] \frac{14√14}{√21} [/tex]   (rationalizezi)
x=[tex] \frac{14√14·√21}{21} [/tex]
x=[tex] \frac{14√294}{21} [/tex]
x=98√6