$\displaystyle \sqrt{6x+9}+5 = 2$
i subtracted 3 from both sides then i multiplied both sides by 3 so i got the equation to be
6x+9=-27
i then subtracted 9 from both sides
6x=-36
i then divided both sides by 6 and got the answer to be -6
but when i plug it in 6*-6=-36+9=-27 and u cant sq or cube ruoute negative number am i doing something wronge