Given and .Find the matrix 2A + B

Engineering

Mathematics

Introduction to Matrix

Algebra of Matrices

Question

Given $A = [\begin{array}{ll} 1 4 \\ 2 3 \end{array}]$ and $B = [\begin{array}{ll} - 4 - 1 \\ - 3 - 2 \end{array}]$ .
Find the matrix 2A + B

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2A + B

= 2 [\begin{array}{ll} 1 4 \\ 2 3 \end{array}] + [\begin{array}{ll} - 4 - 1 \\ - 3 - 2 \end{array}]

= [\begin{array}{ll} 2 8 \\ 4 6 \end{array}] + [\begin{array}{ll} - 4 - 1 \\ - 3 - 2 \end{array}]

= [\begin{array}{cc} - 2 & 7 \\ 1 & 4 \end{array}]