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Distributing with Addition
Distributing with Subtraction
Vocabulary Review
100
3(x + 2)
3x + 6
100
4(x - 2)
4x - 8
100
a number in front of a variable
What is a coefficient
200
10(x + 7)
10x + 70
200
7(x - 4)
7x - 28
200
a letter or symbol that represents an unknown quantity
a variable
300
-2(a + 4)
-2a - 8
300
6(-x - 1)
-6x - 6
300
the property that states a(b + c) = ab + ac
the distributive property
400
(4y + 8)2
8y + 16
400
-3(7a - 12)
-21a + 36
400
to expression
one or more variables, coefficients, numbers, and operation symbols
500
(4 + 6b)(-1)
-4 - 6b; or -6b - 4
500
(-7y - 4)(-6)
42y + 24
500
to evaluate
to "plug in" or to substitute