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Problemi Simili mit-Tiftix tal-Web

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\left(7t^{3}-2k^{4}\right)\left(7t^{3}+2k^{4}\right)
Erġa' ikteb 49t^{6}-4k^{8} bħala \left(7t^{3}\right)^{2}-\left(2k^{4}\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).