Respostas

2014-03-09T11:51:13-03:00
(5x-2) ^{2} -3(5x-2)+1 \\ 25x ^{2}-35x+11 \\ Delta=1225-1100 = 125 \\ X= \frac{35 \frac{+}{-}5 \sqrt{5}  }{50} \\ x'=\frac{35+5 \sqrt{5} }{50}= \frac{35+ \sqrt{5}}{10}      \\  x"=\frac{35-5 \sqrt{5} }{50}= \frac{35-\sqrt{5}}{-10}
2 2 2
Ah! pera, acho que errei denovo
OMG ¬¬
kk calma! revisa de novo!
Aew ^^
uhuull ^^
2014-03-09T11:53:07-03:00
10x-4-3.5x-2+1
10x-15x=4-2+1
-5x=-1
 \frac1{5x} =-1