Simplifying Expressions
Evaluate: -3x when x = -7
21
x + 12 = 5
X = -7
4x = -56
-14
Simplify:
3x2 - x2
2x2
5(-2) - 11
-21
Evaluate: -5x + 3 when
x = -7
x = 38
Y + 9 = -16
Y = -25
x/7 = 15
x = 105
(5x + 9) + (2x - 3)
7x + 6
4(-3) + -6(8)
-60
Evaluate: x2 when x = -12
X + (-9) = -30
-21
-1.5x = -60
40
(3x2 + 5X - 7) + (5X2 - 2X + 15)
8X2 + 3X + 8
7(-6)2
(-2x)2 when x = -3
36
-15 = -4 + M
M = -11
x/7 = -9
-63
(6X - 10) - (4X + 7)
2X - 17
64/4(3)
48
-x3 + 5y2 if x = -2 and y = -5
133
X - (-12) = -19
-31
(2/3)x = 12
18
What is the name and degree of the following polynomial:
x3 + 5x - 15
Degree = 3
Trinomial
4(5)2 - 2(3 + 7 - 4)
88