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Combine scalar multiples of matrices

Question 1 of 8

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Consider the matrices \(B\) and \(D\) shown below

B = \begin{bmatrix} 1 & 4 \\ 2 & 4 \end{bmatrix}

D = \begin{bmatrix} 10 & 6 \\ 4 & 7 \end{bmatrix}