Let x = -4 and y = -5

-5x - 2y²

-5(-4) - 2(-5)²

20 - 2(25)

20 - 50

-30

Let x = -2 and y = 5

-6x²y - -y²

-6(-2)²(5) - -(5)²

-6(4)(5) + 25

-120 + 25

-95

Let x = -9 and y = -4

xy - 2(x - y)

-9(-4) - 2(-9 - -4)

36 - 2(-5)

36 + 10

46

Let x = -3 and y = -5

x²y - x + y

(-3)²(-5) - -3 + -5

9(-5) + 3 - 5

-45 + 3 - 5

-47

Let x = -10 and y = 2

x²y - y³x

(-10)²(2) - (2)³(-10)

(100)(2) - (8)(-10)

200 +80

280

Let x = -5 and y = -6

(xy)² - x

[(-5)(-6)]² - (-5)

(30)² + 5

900 + 5

905

Let x = -4 and y = -3

5xy - 2(x + y)

5(-4)(-3) - 2(-4 + -3)

60 - 2(-7)

60 + 14

74

Let x = -7 and y = 5

-2x - (x + y)(x - y)

-2(-7) - (-7 + 5)(-7 - 5)

14 - (-2)(-12)

14 - 24

-10

Let x = -4 and y = 2

-5xy - (y - x)

-5(-4)(2) - (2 - -4)

80 - 6

74

Let x = -5 and y = -6

-7xy - 2(x + y)

-7(-5)(-6) - 2(-5 + -6)

-210 - 2(-11)

-210 + 22

-188