Respuesta :

SValore

Answer:

[tex](7x+10)^2-140x[/tex]

Step-by-step explanation:

  [tex](7x+10)^2-140x[/tex]

= [tex](7x+10)(7x+10)-140x[/tex]

= [tex]49x^{2} +70x + 70x + 100 - 140x[/tex]

= [tex]49x^2 +140x - 140x +100[/tex]

= [tex]49x^2+100[/tex]

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