2.1 Variables Using variable or variables, rewrite the following given statement into mathematical expressions. Glven Statement Answer 1. (Yes or None) Is there a real number whose square is -1? 2. An integer that has a remain der of 2 when Hint: Let x be an integer, then "equation (ALWAYS FOlloW THE LET-THEN it is divided by 5. structure, do not change the variable x) 3. Given any two real numbers, there is a real Hint: Let a and b be two real numbers and number in between. x be the number in between, then *expression 4. Given any real number, there is a real number that is greater 5. The cube root of any negative real number is negative

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Q: Fill in the missing values to make the statement true. 2x2 – 3x4 %3D 2x 4.

A:

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Q: Simplify. Assume that all variables represent positive real numbers. 4 5 -6/20

A:

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Q: -5

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