Respuesta :

Answer:

= 241

Step-by-step explanation:

[tex]5 {x}^{2} - 2x + 10 \\ 5 {(7)}^{2} - 2(7) + 10 \\ 5(49) - 14 + 10 \\ 245 - 14 + 10 \\ 245 + 10 - 14 \\ 255 - 14 \\ = 241[/tex]

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