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Descompus in produs de factori :(4×+1)la a 2 -(2×+3)la a 2 este...



Răspuns :

[(4x+1)² -(2x+3)²]=  [(4x+1)-(2x+3)][(4x+1)+(2x+3)]=  

=(4x+1-2x-3)(4x+1+2x+3)=

=(6x-2)(6x+4)=

=2(3x-1)(3x+2)