just deal with the power of the x , multiply and simplify

 
        
             
        
        
        
Answer:
x=14
Step-by-step explanation:
 
        
                    
             
        
        
        
Answer:
-11
Step-by-step explanation:
Simplify 
5×−4+9
Simplify 
−20+9
Answer
−11
 
        
             
        
        
        
Answer:
I think it is a 160o Angle
Step-by-step explanation:
 
        
             
        
        
        
Answer:
x = -2
x = 8
Step-by-step explanation:
Excluded values are the ones which make the denominator zero 
3x² + x - 10 
3x² + 6x - 5x - 10
3x(x + 2) - 5(x + 2)
(x + 2)(3x - 5)
x² - 6x - 16 
x² - 8x + 2x - 16 
x(x - 8) + 2(x - 8) 
(x - 8)(x + 2) 
[(x + 2)(3x - 5)] ÷ [(x - 8)(x + 2)]
(3x - 5)/(x - 8)
So excluded values are 8, -2