Simplify the expression. x^2 + x - 6/ x^2 - 4 · x^2 - 9 / x^2 + 6x + 9
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The square has 4 sides of the same measure.
If square SQUA has a side measuring 25 mm, it means side QU measures the same.
Also, if quadrilateral AQER is a square two, then its diagonals bisect each other, then QU is equal to UR.
Thus, QR measures:
The answer is 50 mm