Question

(xy+yz)2 -2xy2z find the value when x = -1, y =1 and Z = 2

Answer 1

Answer:

(xy+yz)2 -2xy2z

='(-1×1 + 1×2)2 - 2(-1)(1)2(2)

= (-1 + 2)2 + 8

= 2 +8

= 10

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