The expression appears incomplete: '1 + 1 + 1 = ? 1 + x(b − a) + x(c − a) 1 + x(a − b) + x(c − b) 1 + x(b − c) + x(a − c)'. The value cannot be determined from the given text.

Difficulty: Easy

• 1
• x
• a + b + c
• Cannot be determined from the given information