Question

Solutia reala a ecuatiei 0,(3)$x^{2}$=$\frac{27}{256}$ este egala cu ..?

Answer 1

0,(3)=1/3
$\frac{ x^{2} }{3} = \frac{27}{256}     x^{2} = \frac{81}{256}           x= \frac{9}{16}$

Answer 2

0.(3)=1/3
x la patrat /3=27/256
x la patrat*256=27*3
x la patrat=27*3/256
x la patrat=81/256
x=9/16
x=0.56