Doprowadz do najprostszej postaci (3+2x)do kwadratu = 2(x-4) do kwiadratu =

(3+2x)² =9+12x+4x² =4x²+12x+9      (a+b)²=a²+2ab+b² 2(x-4)² =2(x²-8x+16)=2x²-16x+32      (a-b)²=a²-2ab+b²

1) = 9 + 12x + 4x² 2) = 2(x² -8x + 16) = 2x² - 16x + 32 ............................