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Let's simplify step-by-step.
5x^3 + 3 + 2x^3 − x^2 + 1
= 5x^3 + 3 + 2x^3 + −x^2 + 1
Combine Like Terms:
= 5x^3 + 3 + 2x^3 + −x^2 + 1
= ( 5x^3 + 2x^3 ) + ( −x^2 ) + ( 3 + 1 )
= 7x^3 + −x^2 + 4
Answer:
= 7x^3 − x^2 + 4
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16.8.  Perimeter of a triangle is side a+ side b+ side c.
        
                    
             
        
        
        
The inequality statement, “An inequality for y greater than or equal to 4” can be written as:
y ≥ 4
Please mark my answers as the Brainliest if you find my explanations helpful :)
        
                    
             
        
        
        
Answer:

Step-by-step explanation:
Given

Required
Simplify

Cancel out 18

Divide 4 and 2

Divide 27 and 12 by 3

Apply law of indices


Divide 2 and 4


Rewrite as:

Hence:

 
        
             
        
        
        
Answer:
1125
Step-by-step explanation:
Amira needs 1125 cm^3 of soil. The answers is right, I just took the test.