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Problemi Simili mit-Tiftix tal-Web

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x^{2}-1
Immultiplika u kkombina termini simili.
\left(x-1\right)\left(x+1\right)
Erġa' ikteb x^{2}-1 bħala x^{2}-1^{2}. Id-differenza tal-kwadrati tista' tiġi fatturata billi tuża r-regola: a^{2}-b^{2}=\left(a-b\right)\left(a+b\right).
x^{2}-1
Naqqas 3 minn 2 biex tikseb -1.