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**Unformatted text preview: ** + – + – – + – + + – + – – + – + (5) This is why the second term in equation 3 is negative. We could also have expanded in terms of a row. For example, choosing the second row: | | A = – d b c h i + e a c g i – f a b g h (6) For Larger Matrices: Do the determinant in steps. For example, a 4x4 is expanded in terms of 3x3 determinants and then the 3x3 determinants are expanded in terms of 2x2 determinants....

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