Question

A student simplifies an expression as -12z -72 correctly. Which expression could the student have simplified?A. -6 (2z + 12)B. -4 (3z - 68)C. 6 (-2z - 72)D. 12 (-z + 6)

Answer 1

The expression -12z -72 comes from the following one:

`-6\cdot(2z+12)=-12z-72`

Therefore, after we applied the distributive property, we obtained that the expression is equal to - 6 (2z + 12). As a result, the correct option is A.

The other expressions give us different results.