Răspunsuri

2014-05-27T19:46:04+03:00
⇒ 9x²-6x+1-25x²+30x-9=40x-4(4x²+4x+1)
-16x²+24x-8=40x-16x²-16x-4
-16x²+16x²+24x-24x=8-4
0=4
nu are solutii