The equation is .

Apply zero product property: If ab = 0 then a = 0, b = 0.

First .

Second .

Apply addition property of equality: If a = b then a b = b a.

      (Subtract 16 from each side)

                 (Apply additive inverse property: )

Check:

To check the solution substitute a = 0 in .

The first solution a = 0 is true.

To check the solution substitute in .

                 (Apply additive inverse property: )

The first solution is true.

The values of a = 0, 16.