How do you evaluate #[8- 4( 5- 7) ]#?

1 Answer
Sep 2, 2017

See a solution process below:

Explanation:

First, subtract the terms within the parenthesis:

#[8 - 4(color(red)(5) - color(red)(7))] => [8 - 4(color(red)(-2))]#

Next, execute the multiplication within the brackets:

#[8 - color(red)(4)(color(red)(-2))] => [8 - (-5)] => [8 + 8]#

Now, execute the addition within the brackets:

#[color(red)(8) + color(red)(8)] => 16#