Question

use a suitable identity to get the each of the following product(b-7)²
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Answer 1

Answer:

b² + 49 - 14b

step-by-step explanation

using identity

(a-b)² = a² + b² - 2ab

we get,

(b-7)² = b² + 7² - 2(b)(7)

= b² + 49 - 14b

Answer 2

Answer:

(a-b)² = a² -2ab +b²

Step-by-step explanation:

(b-7)²

= b²- 14b+49