Answer:
150 x - 80 y + 50 - 50 x - 25 y + 20 
<em><u>Arranging </u></em><em><u>like </u></em><em><u>terms </u></em>
150 x - 50 x -25 y - 80y + 50 + 20
100x - 105 y + 70
<h3>5 ( 20x - 21y + 14) </h3>
 
        
                    
             
        
        
        
 
I have solved some examples in the picture
If anything is unclear let me know.
 
:)
 
        
             
        
        
        
Answer:
The second option
Step-by-step explanation:
The answer is negative (The blue line is below the x axis) 
for all x values between -2 and -6  is a true statement
The first option is incorrect because the function is negative between -4 and -2.
The third option is incorrect because the function is negative between -3 and -2.
The forth option is incorrect because the function is positive for x < -6.
 
        
             
        
        
        
Answer:
50
Step-by-step explanation:
 and 
 can be expressed in complex form, with 
 = i
 = 
 = 
 × 
 = 8i
 = 
 = 
 × 
 = 4i
the factors can then be expressed as
(6 + 8i)(3 - 4i) ← expand using FOIL
= 18 - 24i + 24i - 32i² [ i² = (
 )² = - 1 ]
= 18 - 24i + 24i + 32 ← collect like terms
= 18 + 32 + 0
= 50