Step-by-step explanation:
Are the roots equal or unequal 
 
        
             
        
        
        
(k - 1)(k - 4)
Use FOIL to solve this.
First
k * k
Outer
k * -4
Inner
-1 * k
Last
-1 * -4
k^2 - 4k - 1k + 4
k^2 - 5k + 4 is the trinomial.
        
             
        
        
        
Answer: 
The last one f(x)=(x+2)2+1 because two units to the right is positive and going up is also positive
        
             
        
        
        
-3x-5+2x=6
2x-3x-5=6
-1x-5=6
-x-5=6
-x=11
x=11
an equivilent equaiton is x=11