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The O of O
Plug It In
Expressions w/ +/-
Distributive Property
FOIL
100
5+1-8/2+9*6
56
100
Evaluate the expression when a = 5 and b = -2. a + b
3
100
Combine the like terms to simplify the expression. 2a + 3b - a + 9b
a + 12b
100
Distribute: 5(x+2)
5x + 10
100
Expand: (x + 2) (x - 5).
x^2 - 3x - 10
200
2^2=3^2-9/3+12
22
200
Evaluate the expression when a = 5 and b = -2. a - 2b
9
200
5a - 2a + 3a -4b + 4b - 5c
6a - 5c
200
Distribute: 8(2x+2)
16x + 16
200
Expand: (x - 2) (x - 5).
x ^2 - 7x + 10
300
18-9+3/2-19*8/(3+2)
-19.9
300
Evaluate the expression when a = 5 and b = -2. 2a + 9b - 5
-13
300
16x + 2a - 5b + 3x + 7a + 12b
19x + 9a + 7b (or 9a + 7b + 19x)
300
Distribute: 3x(x+2)
3x^2 + 6x
300
Expand: (2x + 2) (-x - 5).
-2x^2 - 12x - 10
400
52-3*12+5^3/2^2-16
31.25
400
Evaluate the expression when a = 5 and b = -2. 16b + 2a - 32
-54
400
-8x^2 - 8x -8 + 12x^3 -2x^2 +6x +18
12x^3 - 10x^2 - 2x + 10
400
Distribute: -7 (3x - 18)
-21x + 126
400
Expand: (-5x + 2) (2x - 5).
-10x^2 - 21x -10
500
-18(3-2)+1-5^3(6+2)/18-9
-81.556 (or -734/9)
500
Evaluate the expression when a = 5 and b = -2. (5b)^2 - 3a + 15
100
500
5a - 2b + 3c - 2a^2 + 5b - 4a + 12 - 9c - 19
-2a^2 +a + 3b -6c - 7
500
Distribute: -4 (-5x - 20)
20x + 80
500
Expand: (-3x + 7) (2x + 4).
-6x^2 + 2x + 28