Which equation has solutions of 6 and -6

I don't see any answers provided so, i'm going to add, subtract, multiply, and divide with 6 and -6.

6 + -6 = 0 | Another solution: Any number multiplied by 0

6 - (-6) = 12 | Another Solution: 6 + 6

6 · -6 = -36 | Another Solution: -6 squared

6 / -6 = -1 | Another Solution: -1 x 1

care to share were the trapezoid shown is ?

b, i believe, but not sure.