What value(s) of x make the equation x2 - 18x + 81 = 0 true?

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Which measure is equivalent to 110 ml? 0.0110 l 0.110 l 1.10 l 11,000 l

The diagonals of a quadrilaretral intersect at (-1,4). one of the sides of the quadrilateral is bounded by (2,7) and (-3,5) determine the coordinates of the other side in order for the quadrilaretral to be a square.