Question

Elio and Denise solved the equation, (-3n-8)(2n+4)=0. Their work is shown below.

Answer 1

Elio is correct.

Explanation:

Only Elio is correct; he used the Zero Product Property correctly for both factors. For
`-3n-8=0`, he correctly got
`n=-(8)/(3)`. For
`2n+4=0`, he remembered to subtract
`4` from both sides to get
`2n=-4`, which yields
`n=-2` as the other solution.

Answer 2

Elio's answer is correct.

Explanation:

Because a positive number becomes negative at the other side of the 'equal(=)' sign. Denise kept it positive which is wrong.

*2n+4=0 is to be seen.