Odpowiedź :
Oblicz:
(a½-3)(a½+3)=¼a²-9
jeśli ½ to potegi
(a½-3)(a½+3)=a-9
(3x⅓-y½)²=9x^⅔-6x^⅓y^½+y
(3√2-2√2)² =18-24+8=2
(a½-3)(a½+3)=¼a²-9
jeśli ½ to potegi
(a½-3)(a½+3)=a-9
(3x⅓-y½)²=9x^⅔-6x^⅓y^½+y
(3√2-2√2)² =18-24+8=2