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Problemi Simili mit-Tiftix tal-Web

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\left(8r-5t\right)\left(8r+5t\right)
Erġa' ikteb 64r^{2}-25t^{2} bħala \left(8r\right)^{2}-\left(5t\right)^{2}. Id-differenza tal-kwadrati tista' tiġi fatturata billi tuża r-regola: a^{2}-b^{2}=\left(a-b\right)\left(a+b\right).