Answer:
<h2>           
x=-1 and x=2</h2>
Step-by-step explanation:
The "holes" are the x-es where function doesn't exist.
one must not divide by 0, so given function doesn't exis if the denominator is equal 0
The product {(x+1)×(x-2)} is equal 0 if any of factors  {(x+1),(x-2)} is 0, so
x + 1 = 0    or    x - 2 = 0
x = - 1      or    x = 2
 
        
             
        
        
        
Answer:
$800 is the original price
Step-by-step explanation:
15% discount
if 85% = $680
 100% =?
100/85 * $680
=$800
 
        
                    
             
        
        
        
 the general equation for velocity in terms of acceleration and displacement is: v² = v₀² + 2ax.
Solve for a: a = (v² - v₀²)/(2x).
You are given v₀ and v, and x is easy to calculate since you are given its initial and final values. The rest is just arithmetic.
(note also: SI expressions have a required space between the coefficient and the unit symbol. Thus you should have things such as “15 m” and “-2 m·sˉ¹” instead of “15m” and “-2m·sˉ¹”.)
 
        
             
        
        
        
Answer:Hello 
I think it's 12
Step-by-step explanation:
Actually at first you should plus this tow parameters:2x-3x+10
and then you can put(-2)instead (x).
Now you find answer. 
 
        
             
        
        
        
As I look into the problem with a deeper meaning then math I realize this answer can be not as hard as it appears and it could be hard to answer it