Answer:
Second one
Step-by-step explanation:
 
        
                    
             
        
        
        
1. In algebra, like terms are terms that have the same variables and powers. 
2. What is combining like terms? We call terms "like terms" if they have the same variable part.
3. Polynomials form a system similar to the system of integers, in that polynomials are closed under the operations of addition, subtraction, and multiplication. CLOSURE: Polynomials will be closed under an operation if the operation produces another polynomial. ... Polynomials are closed under subtraction.
Hope this helps
        
             
        
        
        
 (4 – 2i)(6 + 2i)
FOIL
First : 4*6 =24
Outer: 4*2i = 8i
Inner: -2i* 6 = -12i
Last: -2i*2i = -4i^2 =-4(-1) =4
Add together
24+8i-12i+4
28-4i
Answer: 28-4i
 
        
                    
             
        
        
        
Answer:
   |-3| = 3 and -|-4| = -4
Step-by-step explanation:
The absolute value function changes the sign to positive, if it isn't already. The usual rules of arithmetic and logic apply to these statements.
|-3| = 3 (true) and -|-4| = -4 (true)   ⇒ this statement is true
|-3| = 3 (true) and |-4| = -4 (false)   ⇒ this statement is false
-|3| = 3 (false) and |4| = 4 (true)   ⇒ this statement is false
|-3| = 3 (true) and -|4| = 4 (false)   ⇒ this statement is false
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<em>Additional comment</em>
A compound "and" statement is only true if <u>all</u> of the parts of it are true.
 
        
             
        
        
        
Hey~
Possibly C.
It makes the most sense.
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