Find a least-squares solution of Ax=b by (a) constructing the normal equations for x and (b) solving for x : -1 2 CH 2-3 b 2 -1 1 A= a. Construct the normal equations for x. 6-9 X₁ -9 14 X2 (Simplify your answers.) b. Solve for x. = X= (Simplify your answer.) 3 4

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