Question

√x^2negativex-12=x+3

Answer 1

\(\sqrt{x^2-x-12}=x+3\) like that?

Answer 2

yes :)

Answer 3

When I tried putting the negative sign in front of the x and then minusing the 12 it thought I was trying to subtract the x

Answer 4

\(\sqrt{(x+3)(x-4)}=(x+3)\)
Square both sides
\((x+3)(x-4)=(x+3)(x+3)\)
\((x+3)((x-4)-(x+3))=0\)
\((x+3)(-7)=0\)
Hence \(x=-3\) is the only answer.

Answer 5

Thank you !!!