Formula applied
The exact method behind this answer
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Principal square root = √x, where the result r is the non-negative number satisfying r × r = x. Square check = result².- Apply the formulaPrincipal square root = √x, where the result r is the non-negative number satisfying r × r = x. Square check = result².√144 = 12.000012.0000 × 12.0000 ≈ 144 · perfect square