properties of the real number system. for addition: the order in which any two numbers are added...
TRANSCRIPT
FOR ADDITION: The order in which any two numbers are added does not change the sum.
FOR MULTIPLICATION: The order in which any two numbers are multiplied does not change the product.
FOR ADDITION: When adding 3 or more numbers, grouping symbols can be placed around any 2 numbers without changing the sum.
FOR MULTIPLICATION: When multiplying 3 or more numbers, grouping symbols can be placed around any 2 numbers without changing the product.
When a number is multiplied to a sum (in parentheses): multiply each number inside the parentheses by the number outside.
Examples:1. 3(x + 5) 2. -3(4x – 6)
3. ½ (6x + 4) 4. -(9x – 3)
FOR ADDITION: Adding zero to any number does not change the number.
FOR MULTIPLICATION: Multiplying any number by one does not change the number.