Plz will give 10 pts and !

two numbers are 10 units away in different directions from their midpoint, m, on a number line. the product of the numbers is –99.

which equation can be used to find m, the midpoint of the two numbers?
(m – 5)(m + 5) = 99
(m – 10)(m + 10) = 99
m2 – 25 = –99
m2 – 100 = –99

"Two numbers are 10 units away in different directions from their midpoint, m, on a number line" so these two numbers are 20 units apart (2*10 = 20) if x and y are the two numbers, then x-y = 20 where x is the larger number we also know that x*y = -99 so one of the numbers is positive while the other is negative. i think its (x-10)(x+10)=-99. hope i could help.