Answer:
1) 5 2) 6 3) 1.25 or -1.75
Step-by-step explanation:
1. x^2 - 25 = 0
x^2 - 25 = 0
First, add 25 to both sides!
x^2 = 25
Now square root both sides.
x = 5
2.  (x-2)^2 = 16
First, square root both sides.
(x-2) = 4
Add 2 on both sides.
(x) = 6
x = 6
3. Quadratic Formula = -b ±  / 2a
 / 2a
Substitute in:
-6 ± / 2(2)
 / 2(2)
-6± / 4
 / 4
Both forms:
-6 +  / 4
 / 4
5 / 4 = 1.25 
Negative:
-6 - 1 / 4
-7 / 4 = -1.75
 
        
             
        
        
        
Answer:
By solving that problem 
Step-by-step explanation: :)
 
        
                    
             
        
        
        
Answer:
x^3-6x^2-10x+100
Step-by-step explanation:
Step 1: Distribute x to (x²-6x+20).
x(x²-6x+20)=x^3-6x^2+20x
Step 2: Distribute 5 to (x²-6x+20).
5(x² − 6x + 20)=5x²-30x+100
Step 3: Combine x^3-6x^2+20x and 5x²-30x+100.
x^3-6x^2-10x+100 
hope it helps you <3
 
        
             
        
        
        
Yea that’s a nice graph i’d say looks a little fishy though