Simplify the following matrix expression: A(A-4B)+2B(A+B)-A²+7B²+3AB
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- Find the following matrices: a) A + B. (b) A - B. (c) -4A. (d) 3A + 2B.Perform the following matrix operation: -2 27 44+43-88 -7 0 6 9 -2The matrix A contains the weight (in pounds) of objects packed on board a spacecraft on earth. The objects are to be used on the moon where things weigh about as much. Write an expression kA that calculates the weight of the objects on the moon.
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