134
punti
Livello 1
=======================================================
$\small (-2x^2)^2-(+3x)^4-(-6x)(+5x^3)+(-6x^2)^2=$
$\small = 4x^4-81x^4-(-30x^{1+3})+36x^4=$
$\small = 4x^4-81x^4+30x^4+36x^4=$
$\small = (4-81+30+36)x^4=$
$\small = -11x^4.$
59320
punti
Genius I