Q1. The answer is 


Q2. The answer is 


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Q3. The answer is </span>

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Q4. The answer is 2x + 7
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Q5. The answer is </span>

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Q6. The answer is 


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Q7. The answer is </span>

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Q8. The answer is </span>

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Q9. The answer is a^{n-8} - a^{-14}
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Answer:
Step-by-step explanation:2+2=4
 
        
             
        
        
        
You can make it easier by replacing x^n with another variable, factoring, then putting x^n back in the end. 
Using exponent and algebra rules, rewrite x^2n - 2x^n + 1 as 
(x^n)^2 - (2 x x^2) + 1
Then, let x^n = m.
m^2 - 2m + 1
Now factor that: (m - 1)^2
And now put x^n back: (x^n - 1)^2
        
             
        
        
        
<h3>
Answer:  shaded region has area 107 square feet</h3>
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Work Shown:
A = area of larger rectangle
A = length*width = 9*15 = 135 square feet
B = area of smaller rectangle
B = length*width = 7*4 = 28 square feet
C = area of shaded region
C = difference in areas of A and B
C = A - B = 135 - 28 = 107 square feet
 
        
        
        
Answer:
1. 500
2. 126
3. 615
Step-by-step explanation:
Area of a parallelogram formula: A = bh
20 x 25 = 500
7 x 18 = 126
20.5 x 30 = 615