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Answer :

Answer:

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

Step-by-step explanation:

[tex](x - 7)^2= (x - 7)(x-7)[/tex]

[tex](x - 7)(x-7)[/tex]

[tex]x^2-7x-7x+49[/tex]

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

Hope this helps!