| J. N. Reddy - Vol. 41 Num. 2 (2021) | ||
| Communication: Quadratic equations without a quadratic formula | 39-41 | |
for the learning of mathematics
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| J. N. Reddy - Vol. 41 Num. 2 (2021) | ||
| Communication: Quadratic equations without a quadratic formula | 39-41 | |