Factor a, b, c from columns 1, 2, 3 of the determinant, then a, b, c from rows 1, 2, 3 to get a2b2c2−1111−1111−1. Expanding the simple determinant gives 4. So determinant =4a2b2c2=4x, giving x=a2b2c2.
If −a2baacab−b2bcacbc−c2=4x, then x=
Held on 11 Aug 2022 · Verified 13 Jul 2026.
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a2b2c2
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