1.

Find the value of \[12{{x}^{2}}+6x{{y}^{3}}z-8x{{y}^{2}}z+l0xy{{z}^{2}}\]where x = -I, y = 1 and z = -1.

A. -4
B. 4
C. -24
D. 24
E. None of these
Answer» D. 24


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