3 years ago

Evaluate the polynomial when x=4 y=-4 x^2-3y^2+2xy

1 answer:

4 0

$x^2-3y^2+2xy\\\\for\ x=4\ and\ y=-4\\\\substitute\ the\ values\ of\ x\ and\ y:\\\\4^2-3\cdot(-4)^2+2\cdot4\cdot(-4)=16-3\cdpt16-32=16-48-32=-64$

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You can also do 15 times $\frac{1}{4}$ , which will result in the same thing.

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