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( 2x + 1)(x-3) +x4+ 2)² - 3x(x-4) =​

Răspuns :

Bunaaa!!!

(2x +1)(x-3)+(4x +2)^2 -3x(x-4)=
= 2x^2 -6x +x-3 + 16x^2 +16x +4 -3x^2 +12x =15x^2+23x+1

Sper ca te am ajutat !!!