Răspunsuri

2014-06-03T16:32:23+03:00
A  4x-1=5⇒4x=6, x=6/4, x=3/5
b   3/4x-7/6=0
3/4x=7/6⇒x=14/9 nu are solutie in Z
c  √5 x-√30=o
√5 x=√30
x=√5/√30=1/√6=√6/6
la a cum de ti-a dat 3/5 ?
3/2 am tastat gresit
la b cum de ai facut de ti-a dat 14/9 ?
x=7/6*4/3=28/18=14/9
dar la c eu nu inteleg