Question

Using a suitable identity to find:​

Answer 1

Step-by-step explanation:

• 2. a²-b²= (a+b) (a-b)
• 1. (a-b)²=a²+b²-2ab

99 we convert this ( 100-1)²

Answer 2

Answer:

.2. a²-b² = (a+b) (a-b)

.1. (a-b)² = a² + b² -2ab

99 we convert this (100 -1)²

Step-by-step explanation:

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