mbennett0417 mbennett0417

31-01-2017
Mathematics

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2x^2-5xy-y^3 if x=-3, and y=-2

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31-01-2017

2x^2-5xy-y^3 if x=-3, and y=-2

2(-3)^2- 5(-3)(-2) -(-2)^3

=2(9) - 5(6) - (-8)

= 18 - 30 + 8

= -4

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