Linear Algebra Find a least-squares solution of Ax = b by (a) constructing the normal equations for x and (b) solving for x. A = [-1, 2], b = [8, 2, 4]        [2, -3]        [-1, 3] (a) Construct the normal equations for x. [        ] [    ]   = [ ] [        ] [    ]      [ ]   (Simplify your answers.) (b) Solve for x. x = [    ] (Simplify your answers.)       [    ]

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