Evaluate each of the following algebraic expressions if x = -1 , y = – InterviewSolution

1.	Evaluate each of the following algebraic expressions if x = -1 , y = 2, z = -2 (i) 2x² - y² (ii) 2xy² - 3yz + xz²(iii) x³ + y² + z ÷ 3(iv) 2x + 3y - 3/2 × z(v) 5 + 4x³ - 2z²
Answer» :1 = 2(-1)^2-(2)^2 2-4= -2

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