Question

simplify (b-7)2 using suitae proprety
​

Answer 1

Answer:

14+19b is your answer mate

Answer 2

identity-

$( { x}^{2} - {y}^{2} ) = {x}^{2} - 2xy + {y}^{2}$

${(b - 7)}^{2}$

$= {b}^{2} - 2(7)(b) + {7}^{2}$

$= {b}^{2} - 14b + 49$