Question

Sea P(x;y)=12-xy+x2-y2, calcule:

P(1.7;4)

Answer 1

P(x;y)=12-xy+x2-y2

P(1.7;4)

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P(1.7;4)=12-(1.7)(4)+(1.7)2-(4)2

P(1.7;4)=5.2+3.4-8

P(1.7;4)=8.6-8

P(1.7;4)=0.6