Question

expand by using suitable identity (x+3)^2(b) (x-7)^2​

Answer 1

Hi there ! ヾ(･ω･*)ﾉ

Step-by-step explanation:

$\bf (x + 3)^{2} = {x}^{2} + 2x \cdot 3 + {3}^{2} = \red{ \boxed{ {x}^{2} + 6x + 9 } }$

$\bf (x - 7)^{2} = {x}^{2} - 2x \cdot 7 + {7}^{2} = \red{ \boxed{ {x}^{2} - 14x + 49 } }$

Answer 2

Step-by-step explanation:

see the picture hope help