Respuesta:
[tex]y = 3x - 7 {x}^{2} + 5[/tex]
Para x= 7
[tex]y = 3(7) - 7 {(7)}^{2} + 5[/tex]
[tex]y = 21 - 7 \times 49 + 5[/tex]
[tex]y = 21 - 343 + 5[/tex]
[tex]y = - 317[/tex]
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Respuesta:
[tex]y = 3x - 7 {x}^{2} + 5[/tex]
Para x= 7
[tex]y = 3(7) - 7 {(7)}^{2} + 5[/tex]
[tex]y = 21 - 7 \times 49 + 5[/tex]
[tex]y = 21 - 343 + 5[/tex]
[tex]y = - 317[/tex]