If x = -1 , y = -2 , z = 3, then find the value of x2 - yz - zx – InterviewSolution

1.	If x = -1 , y = -2 , z = 3, then find the value of x2 - yz - zx
Answer» X =-1 y = -2 z = 3 2x -yz-zx 2(-1) - (-23) - ( 3 -1) = -2+6+3 = 7

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