Question: Halfway through Example SSP4, we need to show that the system of equations is consistent for every choice of the vector of constants satisfying 16a

Halfway through Example SSP4, we need to show that the system of equations

is consistent for every choice of the vector of constants satisfying 16a + 8b + 4c + 2d + e = 0.
Express the column space of the coeffocient matrix of this system as a null space, using Theorem FS. From this use Theorem CSCS to establish that the system is always consistent. Notice that this approach removes from Example SSP4 the need to row-reduce a symbolic matrix.

0 0 0 1][a 0 018 b LS 0 16 24 e 1 -4 1232 d 4-8 16 Le

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