# math

posted by
**cosca**
.

Prove that if p, q, r and s are odd integers, then the equation x^10 + px^9 - qx^7 + rx^4 - s = 0 has no integer roots.

posted by
**cosca**
.

Prove that if p, q, r and s are odd integers, then the equation x^10 + px^9 - qx^7 + rx^4 - s = 0 has no integer roots.