Question

Z = (x+a)²+(Y-b)² + c² ​

Answer 1

$z = {(x + a)}^{2} + {(y - b)}^{2} + {c}^{2} \\ z = {x}^{2} + 2az + {a}^{2} + \\ {y}^{2} - 2yb + {b}^{2} + {c}^{2}$

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