Chodzi tutaj o ustalenie tych wyrażeń algebraicznych: (3a - 2)² = (x -3y)² = (a + 3c)² = (4 - x)² = (9 + 3w)² = (8 - 3c)² = 99² 399² 48²

(3a - 2)² =9a²-12a+4 (x -3y)² =x²-6xy+9y² (a + 3c)² =a²+6ac+9c² (4 - x)² = 16-8x+x² (9 + 3w)² =81+54w+9w² (8 - 3c)² =64-48c+9c² 99²=(100-1)²=10000-200+1=9801 399²=(400-1)²=160000-800+1=159201 48²=(50-2)²=2500-200+4= 2304

(3a-2)²= 9a²-12a+4 (x-3y)²= x²-6xy+9y² (a+3c)²=a²+6ac+9c² (4-x)²=16-8x+x² (9+3w)²=81+54w+9w² (8-3c)²=64-48c+9c² 99²=9801 399²=159201 48²=2304