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12 terms

algebra chapter 2 vocab

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Commutative property of addition
a+b=b+a
example:7+3=3+7
Commutative property of multiplication
ab=ba
48=84
Associative property of addition
a+(b+c)=(a+b)+c
7+(3+5)=(7+3)+5
Associative property of multiplication
a(bc)=(ab)c
4(65)=(46)5
Identity Property of addition
a+0=a
7+0=7
Identity Property of multiplication
a*1=a
4*1=4
Inverse Property of addition
a+(-a)=0
4+(-4)=0
Inverse Property of multiplication
a*(1/a)=1
7*(1/7)=1
Symmetric Property
a=b then b=a
42=8 or 8=42
Distributive Property
a(b+c)=ab+ac
a(b-c)=ab-ac
Multiplication Property of Zero
any number times zero equals zero
2*0=0
multiplication property of -1
-1*n=-n
-1*8=-8