For this case we must simplify the following expression:
[tex]-7 (4r-3)[/tex]
We apply distributive property to the terms within the parenthesis taking into account that [tex]- * + = -[/tex] and [tex]- * - = +[/tex].
The distributive property states that:
[tex]a (b + c) = ab + ac[/tex]
So:
[tex]-28r + 21[/tex]
Answer:
[tex]-28r + 21[/tex]
Option A
