Test Mode
Reading Mode
Right = 0
Wrong = 0
(a - b)(b - c)(a - c)
- (a - b) * (b - c)(c - a)
(a - b)(b - c)(c - a)
(a - b)(b - c)(c - a)(a + b + c)
(a - b)(b - c)(c - a)(ab + bc + ca)
(a - b)(b - c)(c - a)(a - b + c)
(a - b)(b - c)(c - a)(ab - bc + ca)