Properties for Simplifying Algebraic Expressions Flashcards
1
Q
a - b = a + (-b)
A
definition of subtraction
2
Q
a % b = a/b = a x 1/b, b (does not =) 0
A
definition of division
3
Q
a(b - c) = ab - ac
A
distributive property for subtraction
4
Q
0 x a = 0
A
multiplication by 0
5
Q
-1 x a = -a
A
multiplication by -1
6
Q
- (a+b) = -a + (-b)
A
opposite of a sum
7
Q
- (a - b) =b - a
A
opposite of a difference
8
Q
- (ab) = -a x b = a x (-b)
A
opposite of a product
9
Q
- (-a) = a
A
opposite of an opposite
