Total number of geometrical isomers in [Pt(H2N - CH(CH3) - COO−)2] = 4
Total number of stereo isomers in [Pt(gly)3]+ = 4
Sum of geometrical isomers and stereo isomers of given complexes = 8
Thus, the sum of geometrical isomers in [Pt(H2N - CH(CH3) - COO−)2] complex and stereoisomers of [Pt(gly)3]+ complex is 8.