Question: x 1 - 4 x 2 + 4 x 3 = - 1 2 x 1 - 6 x 2 + 2 x 3 =

x1-4x2+4x3=-1
2x1-6x2+2x3=8
-6x1+3x2-15x3=9
(a) If these equations are expressed in matrix form as Ax=b, what are A and b?
x1-4x2+4x3=-1 2x1-6x2+2x3=8 -6x1+3x2-15x3=9 (a) If these equations are expressed in matrix

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