Answer:
49 - x^2
Step-by-step explanation:
(7+x)(7-x)
We know this is the difference of squares
(a-b) (a+b) = a^2 - b^2
7^2 - x^2 = 49-x^2
We can also FOIL
first = 7*7 = 49
Outer: = 7x
Inner: = -7x
Last : -x*x = -x^2
Add them together
49 +7x-7x - x^2
Combine like terms
49-x^2
Subtract 
from both sides to get
Answer:
I believe the answer is
x + 4 = 6.5
-4 -4
__________
x = 2.5
Step-by-step explanation:
hope this helps!
Answer:
42 miles
Step-by-step explanation:
Answer:
x/23
Step-by-step explanation:
The bag of money can be represented by x
Adam is 1 person.
1 + 22 = 23
x is divided by 23
x/23
~ Zoe
