Respuesta :

babykutush2004

Answer:

-657

Step-by-step explanation:

[tex]a= -1\\b= 4\\[/tex]

Substituting the value of a and b

[tex]3a^{2}-4ab-26^{2} \\3(-1)^{2} -4(-1)(4)-676\\3-4(-4)-676\\3+16-676\\19-676\\-657[/tex]

The value of    3a²-4ab-26²  is -657