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4(x-1)^2 = (2-5x)+4x^2

Răspuns :

4(x²-2x+1)=2-5x+4x²
4x²-8x+4=4x²-5x+2
4x²-4x²-8x+5x=2-4
-3x=-2    (-1)
x=2/3