Mathematical Practices
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Write the algebraic expression modeled by the tiles and simplify it by combining like terms.
-x^2-2x
Let's examine each of the given algebra tiles and what they represent.
We have one tile that represents -x^2, and two tiles whose value is -x. By adding these, we can create an algebraic expression modeled by the tiles. -x^2+( -x)+( -x) Finally, we will combine like terms to simplify the above expression. -x^2-2 x