Respuesta :

Answer: -128

Step-by-step explanation:

Hi there! Since we are dealing with only numerical values(no variables) we can use PEMDAS to simplify this expression.

[tex]\text{PEMDAS}: \\\quad \text{P} - \text{Parentheses}, \\\quad \text{E} - \text{Exponents}, \\\quad \text{M} - \text{Multiplication}, \\\quad \text{D} - \text{Division}, \\\quad \text{A} - \text{Addition}, \\\quad \text{S} - \text{Subtraction}[/tex]

Solving:

[tex]-2(7-3+4)^2[/tex]

We must solve what is in the parenthesis first:

[tex]-2(8)^2[/tex]

Now evaluate the exponent:

[tex]-2(64)[/tex]

Now do the multiplication:

[tex]\boxed{\boxed{-128}}[/tex]

That's it!