Question

Va rog ajutați-mă!!
13-b
14-b​

Answer 1

$13.b)x^3-3x+4x^2-12-x(x^2+4x+4)+x^2-2x+1=x^3-3x+4x^2-12-x^3-4x^2-4x+x^2-2x+1=x^2-9x-11\\14.b)4(3+2\sqrt{3}+1)-8\sqrt{3} +3-(21-2)=4(4+2\sqrt{3})-8\sqrt{3} +3-19=16+8\sqrt{3}-8\sqrt{3} +3-19=0$