F1 margin=a text="The remaining 2x2 determinant is the minor."
F2 margin=l text="Multiply each cofactor by the entry it came from."
F3 margin=l text="For the 3x3 matrix, delete row i and column j."
F4 margin=c text="The result equals the determinant."
F5 margin=e text="The final margin word identifies the method."
F6 margin=p text="Attach sign (-1)^(i+j) to form the cofactor."
F7 margin=a text="Sum these terms along the selected row."