Question

16√14 - √21x = 2√14

Answer 1

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

Answer 2

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