Ononot — If \det(A) = 6 for a 3×3 matrix A, and matrix B is obtained

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Determinantshard

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If $\det(A) = 6$ for a 3×3 matrix $A$ , and matrix $B$ is obtained by replacing row 2 of $A$ with (row 2 + 3 × row 1), what is $\det(B)$ ?