Find the matrix product, if possible.

A.
B.  
C.
D.


Answer: B

Mathematics

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A. {-2 ± }
B. {-2 ± 3i}
C. {1, -5}
D. {2 ± 3i}

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A. 1.159 B. 0.093 C. 10.714 D. -0.093 E. -0.424

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Solve the equation.7x4 = 21x3

A. -3, 7 B.  0, 3 C. 0, -3 D. 3, 7

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Multiply.7x2(2x2 + 3x + 1)

A. 14x4 + 21x + 7 B. 14x4 + 21x3 + 7x2 C. 14x4 + 21x2 + 7 D. 9x4 + 10x + 8

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