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a fost răspuns

(2x+1)la a doua - (3x-2)(2x+1)+3x(2x+1)=
(4x-5)(3x+2)la a doua - (3x+2) la a treia + 2(x+4)(3x+2) la a doua=
(5x-3)(3x+4)-2(3x+4) la a doua + 3x(3x+4)

Răspuns :

Mikilus
4x²+8x+3
6x²-9x-44
 Pe a 2-a nu stiu sa o rezolv, fiindca nu am facut ecuatii la puterea a 3a...sorry
(2x+1)²-(3x-2)(2x+1)+3x(2x+1)=
(2x+1)(2x+1-3x+2+3x)=
(2x+1)(2x+3)

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

(5x-3)(3x+4)-2(3x+4)²+3x(3x+4)=
(3x+4)(5x-3-6x-8+3x)=
(3x+4)(2x-11)