An algebra problem by أحمد الحلاق

Algebra Level 4

Find the sum of all x \lfloor x \rfloor satisfying x 2 15 x + 36 = 0 x^2 - 15\lfloor x \rfloor + 36 = 0 .

Notation : \lfloor \cdot \rfloor denotes the floor function .

45 26 75 49 15

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