Respuesta :

Simplify the expression by using the identity of (a - b)^2.

[tex]\begin{gathered} (x-7)^2=x^2-2\cdot7\cdot x+(7)^2 \\ =x^2-14x+49 \end{gathered}[/tex]

So answer is,

[tex]x^2-14x+49[/tex]