OpenStudy (anonymous):

Find the solution of 3 square root of x+5=-9

4 years ago
OpenStudy (abmon98):

$3\sqrt{x+5}=-9$$3(x+5)^{1/2}=-9$$Expand brackets$$3x+15=(-9)^2$$3x+15=81$$3x=81-15$$x=66/3$

4 years ago
OpenStudy (anonymous):

these are the anser choices: x = 4; not extraneous x = 4; extraneous x = 0; extraneous x = 0; not extraneous

4 years ago