help me with algebra 9

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1. State the degree of the polynomial.

xy + 3x2 â€“ 7 + x

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(Points : 4)

 
 


 
 


 
 


 
 

Question 2.2. Arrange 2x2 â€“ 4x4 + 3 + 6x in standard form.

(Points : 4)

 
 

Question 3.3. Add and simplify.

(2x2 â€“ 11x) + (3x2 + 10x â€“ 4)

(Points : 4)

 
 

Question 4.4. Subtract and simplify: (3x2 â€“ 6x + 7) – (x2 â€“ 6x + 4)

(Points : 4)

 
 

Question 5.5. Multiply and simplify: –3x2y2 â€¢ y4x3

(Points : 4)

 
 

Question 6.6. Multiply and simplify: 10x(6x2 + 7x + 9)

(Points : 4)

 
 

Question 7.7. Multiply and simplify: (3x + 2)(3x + 4)

(Points : 4)

 
 

Question 8.8. Determine if the expression is a polynomial. If so, classify it by its number of terms.

3x2 â€“ 5x

(Points : 4)

 
 


 
 


 
 


 
 

Question 9.9. Express the perimeter of the triangle as a polynomial. 

 

(Points : 4)

 
 


 
 


 
 


 
 

Question 10.10. Expand the squared binomial.

(x â€“ 4)2

(Points : 4)

 
 

Question 11.11. Use FOIL to multiply the two binomials.

(b + 3)(b + 9)

(Points : 4)

 
 

Question 12.12. Find the volume of the box. Use the formula V = lwh. 

 

(Points : 4)

 
 

 

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