Please help me verify the formula(7.4.4) please and the question for 6.5. Thanks.

(7.4.3) m, = (a01-a11)(b,o + bn) The matrix product AB is then given by m2 +m m + m,-m2+ m (7.4.4) Consider now the case of two n x n matrices, where for convenience we assume that n = 2k we first partition the matrices A and B into four (n2) x (n/2) submatrices, as shown. (7.4.5) Bo B The product AB can be expressed in terms of eight matrix products as follows. (7.4.6) ith the 2 2 case, we can carry out the matrix product AB using only the following seven matrix multiplications. 294