I need the answers as soon as possible please!

12. Second Derivative Test ( Note the domain of the function) 6 pt's Find the relative extrema X2 - 4 by the Second Derivative Test ( max / min ) S'( x ) = - 10x ( x 2 - 4 ) 2 Clearly Show your Steps 10 ( 3 x2 + 4 ) must use SOF Pg 4 8 ( x ) = ( X 2 - 4)3 to find Solution