So to factor
factor out a x+z
(x+z)(x^2-xz+z^2)
the factors are
x+z and x^2-xz+z^2
        
             
        
        
        
Answer:
See below
Step-by-step explanation:
Remark
Base angles of Isosceles triangles are equal. 
Equation
That means that 8x + 14 = 14x - 15
 
Solution
8x + 14 = 14x - 15              Add 15 to both sides
8x + 14+15 = 14x               Combine
8x + 29 = 14x                   Subtract 8x from both sides
8x - 8x + 29 = 14x - 8x    Combine
29 = 6x                            Divide by 6
x = 29/6
x = 4 5/6
Answer
x = 4 5/6 or 4.833 
8x + 14 = 8 * (4 5/6)   +  14 
8x + 14 = 38 2/3 + 14 
8x + 14 = 52 2/3 or 52.6666
14x - 15 = 14 *(4 5/6) - 15
14x - 15 = 67 2/3   -15
14x - 15 = 52 2/3 or 52.666 
 
        
             
        
        
        
Answer:
Q is not the midpoint of PR
Step-by-step explanation:
see the attached figure to better understand the problem
we know that
If Q is the midpoint of PR
then
PQ=QR
substitute the given values and solve for x

Remember that
 ----> given problem
 ----> given problem

substitute the value of x



Compare with the given value of PR

therefore
Q is not the midpoint of PR