# Three Mistakes of My Life

The probabilities that a student passes in Mathematics, Physics and Chemistry are $$M$$, $$P$$ and $$C$$ respectively.
Of these subjects, the student has a 75% chance of passing in at least one, a 50% chance of passing in at least two, and a 40% chance of passing in exactly two.
Then for real values of $$x$$, find the sum of all coefficients of $$x$$ (including the constant term) in the expansion of $$(x-M)(x-P)(x-C)$$.

Assumptions and Clarifications
- The required sum must also include the constant term.

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