1. If Z = X 2 - Y 2 , find Z when (a) X = -2, Y = 3, and (b) X =1, Y = 5. (c) If using the functional notation Z = F(X, Y), find F(-3, -1). 2. If W = 3XZ - 4Y 2 + 2XY, find W when (a) X = 1, Y = -2, Z...

1. If Z = X² - Y², find Z when

(a) X = -2, Y = 3, and

(b) X =1, Y = 5.

(c) If using the functional notation Z = F(X, Y), find F(-3, -1).

2. If W = 3XZ - 4Y² + 2XY, find W when

(a) X = 1, Y = -2, Z = 4, and

(b) X = -5, Y = -2, Z = 0.

(c) If using the functional notation W = F(X, Y, Z), find F(3, 1, -2).