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Given parallelogram ABCD with vertices A(0,6), B(4,9), C(10,6) what are the coordinates
Given parallelogram ABCD with vertices A(0,6), B(4,9), C(10,6) what are the coordinates of vertex D?
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(2x-3)²=(2x)²-2*2x*3+3²=4x²-12x+9