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(x+2)la a2a - (x-3)la a2a - (x+1)(x-1)

Va rog frumos raspundeti!!!


Răspuns :

(xla a doua +4x+4)-(x la o doua-12x+9)-x la a doua -1=
x la a doua +4x+4-x la a doua+12x-9-x la a doua- 1=-x la a doua+ 16x-5