Question: Write X - F = G = H 0 1 -7-56 HINT: Start by using the row reduction of X to find elementary matrices

Write X - F = G = H 0 1 -7-56 HINT: 

Write X - F = G = H 0 1 -7-56 HINT: Start by using the row reduction of X to find elementary matrices Ea, EA, and Eo such that EEAEX = I. Then solve for X, bearing in mind the fact that the inverse of any elementary matrix is also an elementary matrix. You should be able to deduce that the matrice F, G, and H are inverse elementary matrices used to isolate X, but be careful to write your matrices in the correct order. || as a product X = FGH, where F, G, and H are all elementary matrices.

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