Section 2.6 Day #1

x + 18 = 18 + x is an example of the ___ property

(uy)*z = u*(yz) is an example of the ___ property

Which of the following shows the COMMUTATIVE property at work?

(x + y) + z = 

Which property should be used first if the goal is to combine like terms?

3x + (5y - 3x)

Now that you have used to the commutative property of addition to rewrite as;

(5y - 3x) + 3x

now what do you apply? What do we simplify to?

Which of the following shows the ASSOCIATIVE property at work?

(x + y) + z = 

Simplify using the associative and commutative properties; 4y + 3 + 7y

Simplify by combining like terms;

n -10 +9n -3=

Subtract the polynomials;

(7x²-5x+3)-(2x²-2x-1)

Add the like terms;

(-9x²+12x-15)+(4x²-7x+10)