Algebra I

Example 1

Simplify.

1. a, b

   

2. 

3. If each variable is nonnegative (not a negative number),

If each variable could be positive or negative (deleting the restriction “If each variable is nonnegative”), then absolute value signs are placed around variables to odd powers.

• e

  If each variable is nonnegative,

• f

  If each variable is nonnegative,

If each variable could be positive or negative, then you would write

• g

  If each variable is nonnegative,

If each variable could be positive or negative, you would write

• h

  If each variable is nonnegative,

If each variable could be positive or negative, you would write

• i

  If each variable is nonnegative,

• j

  If each variable is nonnegative,