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 9.17 2. x = 0, y = 2.5 1.665 3. x = -1, y = -3 -11.25 4. x = 0.5, y = 14 5. x = , y = -1 6. x = √2, y = √2 0.44

X = 2, y = -1  Answer = -1
x = 0, y = 2.5  Answer = -11.25
x = -1, y = -3   Answer = 14
x = 0.5, y = -0.1 (one tenths)  Answer = 0.44
x = 0.75 (three quarters), y = 0.4 (two fifths)  Answer = 1.665
x = 1.41 (sqareroot of 2), y = 1.41 (sqareroot of 2)  Answer = 9.17

I hope this helps!