commutative for addition
<span>22+(m+8)=(m+8)+22</span> then associative
<span>(m+8)+22=m+(8+22)</span>
<span>=m+30</span>
Answer:
20x^3-5x^2-10x+15
Step-by-step explanation:
You will use foil to get the expression 20x^3-25x^2+15x+20x^2-25x+15, and once you combine like terms you get 20x^3-5x^2-10x+15
10 I’m just going to write this cause it has to be 20 characters long to answer
Answer:
19y-9
Step-by-step explanation:
apply distributive property
-3(-4y)-3 x 3 + 7y
12y - 3 x 3 + 7y
12y - 9 + 7y
add 12y to 7y
19y-9
Answer:
1/4
Step-by-step explanation:
(2-1)/(9-5)
1/4