1=$5.85 I used calculator soup
Answer:
(x-7)(x+7)
Step-by-step explanation:
x^2 -49
This is the difference of squares
x^2 -7^2
We know that a^2 -b^2 = (a-b)(a+b)
(x-7)(x+7)
Answer:

Step-by-step explanation:
we know that
Applying the law of cosines

we have

substitute



Answer:
umm use internet?
Step-by-step explanation:
Better quality would help, have a good day/night