Question

use a suitable identity to get the each of the following product(b-7)²
​

Answer 1

Answer:

b² + 49 - 14b

Step-by-step explanation:

using identity (a-b)² = a² + b² - 2ab

we get,

(b-7)² = b² + (7)² - 2(b)(7)

= b² + 49 - 14b