History of Hindu Mathematics: A Source Book v2.c17.s8.119
History of Hindu Mathematics: A Source Book v2.c17.s8.119
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v2.c17.s8.119
**Brahmagupta.** The existence of two roots of a quadratic equation appears to have been known also to Brahmagupta (628). In illustration of his rules for the solution of the quadratic, he has stated two problems involving practically the same equation.