Răspuns:(2²+x+1)²+(x²-x+1)²+(x²-x-1)²=
4x∧4+x²+1+4x³+4x²+2x+x∧4+x²+1-2x³+2x²-2x+x∧4+x²+1-2x²-2x²+2x
elimina numerelr opuse +2x si -2x; -2x² si +2x²;
4x∧4+x²+1+4x³+4x²+x∧4+x²+1-2x³+x∧4+x²+1-2x³+2x
redu termenii asemenea
6x∧4+7x²+1+4x³+1-2x³+1-2x³+2x
calculeaza suma numerelor pozitive
6x∧4+7x²+3+4x³-2x³-2x³+2x
redu termenii asemenea
6x∧4+7x²+2x+3
∧4 - inseamna la puterea a patra
Explicație pas cu pas: