when asked to factor the
[tex] {x}^{2} - 144[/tex]
a student gives the answer
[tex](x - 12)(x - 12)[/tex]
what is wrong with this answer?
A. there is nothing wrong with this answer.
B. both minus signs should be plus signs.
C. one of the minus signs should be a plus sign.
D. -1 is also a factor