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[tex]\sf (2+a)x^2-bx+(c-1)=3x^2-2x+2\\\sf 2+a=3\\\sf a=3-2\\\huge\boxed{\boxed{\boxed{\boxed{\sf a=1}}}}\blue{\checkmark}\\\sf-b=-2\cdot(-1)\\\huge\boxed{\boxed{\boxed{\boxed{\sf b=2}}}}\blue{\checkmark}\\\sf c-1=2\\\sf c=2+1\\\huge\boxed{\boxed{\boxed{\boxed{\sf c=3}}}}\blue{\checkmark}\\\Huge\boxed{\boxed{\boxed{\boxed{\sf\maltese~alternativa~d}}}}[/tex]
