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Explain the role of zero pairs when simplifying and algebraic expression using algebra tiles. Use a mathematical property to justify your answer
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Explain the role of zero pairs when simplifying and algebraic expression using algebra tiles. Use a mathematical property to justify your answer

User Pixic
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the zero pairs numbers are two numbers whose sum are zero,the negative and positive number are used to create zero pairs in equation.
example
+2, -2 are zero pairs, because +2 +(-2)=0
User Colin Swelin
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