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Problemi Simili mit-Tiftix tal-Web

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1-\left(b^{2}-2bc+c^{2}\right)
Uża teorema binomjali \left(p-q\right)^{2}=p^{2}-2pq+q^{2} biex tespandi \left(b-c\right)^{2}.
1-b^{2}+2bc-c^{2}
Biex issib l-oppost ta' b^{2}-2bc+c^{2}, sib l-oppost ta' kull terminu.
1-\left(b^{2}-2bc+c^{2}\right)
Uża teorema binomjali \left(p-q\right)^{2}=p^{2}-2pq+q^{2} biex tespandi \left(b-c\right)^{2}.
1-b^{2}+2bc-c^{2}
Biex issib l-oppost ta' b^{2}-2bc+c^{2}, sib l-oppost ta' kull terminu.