Algebra Tiles


Algebra Tiles
If X is the length of the side of the square, and 1 is the width of the bar, these tiles represent (X + 3) (X + 2) = X2 + 5X + 6.  What is X if  X2 + 5X + 6 = 42?  

What other values of the equation, besides 42, will give a whole number value for X?  

What other values of the equation will give a negative number value for X?


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