Răspunsuri

2014-04-27T15:31:26+03:00
(x+√3)²-10=x²-(√3+2)²⇒x²+2x√3+3-10=x²-3-4√3-4⇒x²+2x√3-7=x²-7-4√3⇒2x√3=-4√3⇒x=(-4√3)/(2√3)⇒x=-2
2014-04-27T16:55:58+03:00
(x+√3)²-10=x²-(√3+2)²
(a+b)
²=a²+2ab+b²=>
x²+2x√3+3-10=x²-(3+4√3+4)
x²+2x√3+3-10=x²-3-4√3-4
x²+2x√3+3-10=x²-7√3-4
x²+2x√3-7=x²-7-4√3
2x√3= - 4√3
x= - 4√3
     2√3

 =>x= - 2