Mathematics, 16.10.2019 18:30 Bloom247
substitute the values of x and y into the expression -3x 2 + 2y 2 + 5xy - 2y + 5x 2 - 3y 2. match that value to one of the numbers.
1. x = 2, y = -1
0.44
2. x = 0, y = 2.5
14
3. x = -1, y = -3
1.665
4. x = 0.5, y =
-1
5. x = , y =
9.17
6. x = √2, y = √2
-11.25
Answers: 2
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substitute the values of x and y into the expression -3x 2 + 2y 2 + 5xy - 2y + 5x 2 - 3y 2. match th...
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