Answer:
(1+x)(1-x)
Explanation:
Since both terms are perfect squares, factor using the difference of square formula
a^2 - b^2 = (a+b)(a-b) where a = 1 and b = x.
The answer is c, your lungs
Answer: ask goooooooooooooooogle
Explanation:
True. Biking or walking exercises the leg muscles more than riding in a car would.
The 3rd one, the one that begins with knowledge