Evaluate – 2
Evaluate each of the following expressions for the given variable replacements.
1.
x+y
when x = -3 and y = -2
_________
2.
3x – 2y
x = -2 and y = -3
_________
3.
2xy + y
x = -3 y = -2
_________
4.
5x – 3y
x = 3 y = -5
_________
5.
3x2y – 5
x = -4 y = -2
_________
6.
2(xy)2 – 3y3
x = -2 y = -1
_________
7.
5(x – 3y)2 + 14xy
x = -11 y = 3
_________
8.
(3x – 4y)2 – 3 xy2
x = -3 y = -2
_________
9.
(2xyz)2 – 5x3
x = -3 y = 4 z = -1
_________
10.
4x – |x – 2y|
x = 1 y = -5
_________
Answers 1. -5,
2. 0,
3. 10,
4. 30,
5. -101,
6. 11,
7. -62,
8. 37,
9. 581,
10. -7