Aidaolivo29 Aidaolivo29

09-09-2014
Mathematics

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If x=2 and y=-3what is the value of 2x²-3xy-2y²

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mariamikayla mariamikayla

09-09-2014

[tex]2x^2-3xy-2y^2= 2*2^2-3*2*(-3)-2*(-3)^2 \\ \\ = 2*4+18-2*9= \\ \\ =8+18-18 \\ \\ =\boxed{8}[/tex]

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