Respuesta :

KimYurii

Step-by-step explanation:

  • y = 5

Substitute the value of y in the expression.

[tex] \implies \sf {z}^{2} - 7y - 6 \\ \implies \sf {z}^{2} - 7(5) - 6 \\ \implies \sf {z}^{2} - 35 - 6 \\ \implies \sf {z}^{2} - 41[/tex]

Therefore, z² – 41 is the answer.