Answer:
{x}^{4}+4{x}^{3}y+6{x}^{2}{y}^{2}+4x{y}^{3}+{y}^{4}x
4
 +4x
3
 y+6x
2
 y
2
 +4xy
3
 +y
4
  
Step-by-step explanation:
1 Use Square of Sum: {(a+b)}^{2}={a}^{2}+2ab+{b}^{2}(a+b)
2
 =a
2
 +2ab+b
2
 .
({x}^{2}+2xy+{y}^{2})({x}^{2}+2xy+{y}^{2})(x
2
 +2xy+y
2
 )(x
2
 +2xy+y
2
 )
2 Expand by distributing sum groups.
{x}^{2}({x}^{2}+2xy+{y}^{2})+2xy({x}^{2}+2xy+{y}^{2})+{y}^{2}({x}^{2}+2xy+{y}^{2})x
2
 (x
2
 +2xy+y
2
 )+2xy(x
2
 +2xy+y
2
 )+y
2
 (x
2
 +2xy+y
2
 )
3 Expand by distributing terms.
{x}^{4}+2{x}^{3}y+{x}^{2}{y}^{2}+2xy({x}^{2}+2xy+{y}^{2})+{y}^{2}({x}^{2}+2xy+{y}^{2})x
4
 +2x
3
 y+x
2
 y
2
 +2xy(x
2
 +2xy+y
2
 )+y
2
 (x
2
 +2xy+y
2
 )
4 Expand by distributing terms.
{x}^{4}+2{x}^{3}y+{x}^{2}{y}^{2}+2{x}^{3}y+4{x}^{2}{y}^{2}+2x{y}^{3}+{y}^{2}({x}^{2}+2xy+{y}^{2})x
4
 +2x
3
 y+x
2
 y
2
 +2x
3
 y+4x
2
 y
2
 +2xy
3
 +y
2
 (x
2
 +2xy+y
2
 )
5 Expand by distributing terms.
{x}^{4}+2{x}^{3}y+{x}^{2}{y}^{2}+2{x}^{3}y+4{x}^{2}{y}^{2}+2x{y}^{3}+{y}^{2}{x}^{2}+2{y}^{3}x+{y}^{4}x
4
 +2x
3
 y+x
2
 y
2
 +2x
3
 y+4x
2
 y
2
 +2xy
3
 +y
2
 x
2
 +2y
3
 x+y
4
  
6 Collect like terms.
{x}^{4}+(2{x}^{3}y+2{x}^{3}y)+({x}^{2}{y}^{2}+4{x}^{2}{y}^{2}+{x}^{2}{y}^{2})+(2x{y}^{3}+2x{y}^{3})+{y}^{4}x
4
 +(2x
3
 y+2x
3
 y)+(x
2
 y
2
 +4x
2
 y
2
 +x
2
 y
2
 )+(2xy
3
 +2xy
3
 )+y
4
  
7 Simplify.
{x}^{4}+4{x}^{3}y+6{x}^{2}{y}^{2}+4x{y}^{3}+{y}^{4}x
4
 +4x
3
 y+6x
2
 y
2
 +4xy
3
 +y
4
  
 
        
                    
             
        
        
        
Answer:
x=(y+9)/(1+2w)
Step-by-step explanation:
x-9+2wx=y
We make x the subject
x+2wx=y+9
x(1+2w)=y+9
Divide both sides by (1+2w)
x(1+2w)/(1+2w)=y+9(1+2w)
x=(y+9)/(1+2w)
 
        
             
        
        
        
The answer to your question is <span>B.-2/3</span> 
        
                    
             
        
        
        
Answer:
100
Step-by-step explanation:
i dont know but the website i was on said 100
 
        
             
        
        
        
1. Round 50.75 to 50 and 0.18 to 0.20.
50 x 0.2 = 10
2) Round 96 to 100 and 0.499 to 0.5
100 divided by 0.5 = 50
3a) Round 8.2 to 8, 6.7 to 7, and 0.46 to 0.50
8 x 7 divided by 0.50 = 112
3b) Round 23.4 to 20, 13.9 to 10, and 0.18 to 0.20
20 x 10 divided by 0.20 = 2,000