

MCQOPTIONS
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1. |
The sum of 4x + 3y  7z, x  y  z and Â2x  3y + 4z is |
A. | 3x -Â y -Â 4z |
B. | 3x -Â y + 4z |
C. | 3x + y -Â 4z |
D. | 3x + y + 4z |
Answer» B. 3x -Â y + 4z | |