Respuesta :

Answer:

11t² + 7t + 3

Step-by-step explanation:

⇒ (5t² + 4) - (6t² - 7t + 1)

⇒ 5t² + 4 - 6t² + 7t - 1

⇒ 11t² + 7t + 3

Answer:  [tex]-t^2 + 7t + 3\\\\[/tex]

Work Shown:

[tex](5t^2 + 4) - (6t^2 - 7t + 1)\\\\5t^2 + 4 - 6t^2 + 7t - 1\\\\(5t^2 - 6t^2) + 7t + (4-1)\\\\-t^2 + 7t + 3\\\\[/tex]

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