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MarianPursisimplu
a fost răspuns

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

Răspuns :

Iakabcristina2
6x^2+7x-3-2x^2-2x+2x^2-2x-12=
6x^2+3x-15=
3(2x^2+1-5)

[tex]={6x}^{2}+9x-2x-3-{2x}^{2}-2x+2({x}^{2}-3x+2x-6)[/tex]
[tex]={6x}^{2}+9x-2x-3-{2x}^{2}-2x+2{x}^{2}-6x+4x-12[/tex]
[tex]={6x}^{2}+3x-15[/tex]
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