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(3x-1)²-(5x-3)²=40x-4(2x+1)²

Răspuns :

⇒ 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