Question

use suitable algebraic properties and solve this problem (b-7)^2​

Answer 1

Answer:

= b^2 - 14b + 49

Step-by-step explanation:

(b-7)^2

= (b)^2 - 2(b)(7) + (7)^2

= b^2 - 14b + 49

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Answer 2

Answer:

b² - 14b + 49

Step-by-step explanation:

We know that (a-b)²= a²-2ab+b²

Here the value of a is b and the value if b is 7

Therefore,

(a-b)² = (b-7) ²

= b² - 2×7×b + 7²

= b² - 14b + 49

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