You can put this solution on YOUR website!
The rule to follow when you have parentheses within
parentheses is -start with the innermost parenthesis
In your problem, the innermost is
which equals . Now you have
A minus in front of a parenthesis changes the sign
of everything inside, like this:
So, now you have
Note also that if no sign appears in front of a number
then a + is implied
Also, you don't need the ( ) around the 1 or the 7 answer
