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was told to simplify this question. Simplify

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ul><li>I was told to simplify this question. Simplify: 56x<sup>7</sup>+

21x<sup>4</sup>+ 63x<sup>3</sup></li></ul>

 
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I need to solve systems of linear equation and show my work for the following: 2

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I need to solve systems of linear equation and show my work for the following:
2x-y=5
5x+2y=8Here

is what I did. 

   2x-y=5

-x2   -x2

-y=-2x+5
                   
                                 y = 2x-5


                             5x+2(2x-5)=8
                   
                              5x+4x-10=8

                              9x-10 = 8
  
                                  +10   +10

                                   9x=18

                                     /9   9/

                                    x=2

 
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Why are there two solutions to a quadratic equation and only one solution to a linear equation ?

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Why are there two solutions to a quadratic equation and only one solution to a linear equation ?

 
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Many famous people have made contributions to the field of mathematics.

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Many famous people have made contributions to the field of mathematics. This week, as we begin our study of square

roots, let’s explore the life of Pythagoras and his contribution to the world of mathematics. Write one short paragraph (5–10 sentences) that provides us with a snapshot of one part of his life, his discoveries, or the famous theorem that we still use today.

 
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