(2*x+1)*(2*x+2)*(2*x+3)​

Răspuns :

(2x+1)*(2x+2)*(2x+3)=(2x*2x+4x+2x+2)*(2x+3)=(4x^2+6x+2)*(2x+3)=8x^3+12x^2+4x+12x^2+18x+6=8x^3+24x^2+22x+6

RASPUNS FINAL:8x^3+24x^2+22x+6

(2x+1)*(2x+2)*(2x+3)=(2x*2x+4x+2x+2)*(2x+3)=(4x^2+6x+2)*(2x+3)=8x^3+12x^2+4x+12x^2+18x+6=8x^3+24x^2+22x+6

Succes!!シ︎