Answer:
x^2 -81
Step-by-step explanation:
(x+9)(x-9)
FOIL
first x*x = x^2
outer -9x
inner 9x
last -9*9 = -81
Add them together
x^2 -9x+9x -81
Combine like terms
x^2 -81
Answer:
The age of a kitten and it’s weight
Temperature and sales of Ice Cream
The number of notebooks bought and the total cost
Step-by-step explanation:
Answer:
1. Neither pair is a solution
Step-by-step explanation:
3*3=9 -18*4=-32 9(-)-32=41 not eleven
4*3=12 4*4=16 12-16=-4 not eleven
<span>There are 2 3/4 boxes and 1/2 pies in each box how many pies are there? </span>
360 degrees. all the way around the circle is 360 degrees!