31. Ifx=y + z, y =-z and z=-4, what is the value of 3x2 + 5y-z? – InterviewSolution

1.	31. Ifx=y + z, y =-z and z=-4, what is the value of 3x2 + 5y-z?
Answer» 3x^2 + 5y - zGiven x = y + z, y =1/2zX = 3/2zThen 3(3/2z)^2 + 5/2z +z27/4z ^2 + 7/2zValue of z = - 4Put value of z in given equation 27/4 (16) - 1427*4 - 14108 - 1484 ans

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