Answer: No
Step-by-step explanation:
[tex](x-5)(x+7)=12[/tex]
Replace x for 5 and -7 separately.
[tex](5-5)(5+7)=12\\0(12)=12\\0=12[/tex]
[tex](-7-5)(-7+7)=12\\-12(0)=12\\0=12[/tex]
