Answer:
X = 44°
Step-by-step explanation:
The angle other than 68°and and x is also 68° because its a isosceles triangle. 
so 68° + 68° + x = 180° (angle sum property)
 136° + x = 180° 
 x = 180 - 136
 = 44°
hope this helps.
 
        
                    
             
        
        
        
        
Sorry for the delay but I answered your question and the answer is -6xsquare +11x-4