Can anyone show me how what numbers I can use to show that the first four options are incorrect? I keep coming up with each statement being true.
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This particular problem can be solved faster algebraically as follows.
xy +z = x(y+z)
->xy +z = xy +xz
-> xz -z = 0
-> z(x -1) = 0
So z = 0 OR x -1 =0
ie
z = 0, x = 1
HT Helps
