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Problemi Simili mit-Tiftix tal-Web

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4\left(n^{2}-2n+1\right)
Uża teorema binomjali \left(a-b\right)^{2}=a^{2}-2ab+b^{2} biex tespandi \left(n-1\right)^{2}.
4n^{2}-8n+4
Uża l-propjetà distributtiva biex timmultiplika 4 b'n^{2}-2n+1.
4\left(n^{2}-2n+1\right)
Uża teorema binomjali \left(a-b\right)^{2}=a^{2}-2ab+b^{2} biex tespandi \left(n-1\right)^{2}.
4n^{2}-8n+4
Uża l-propjetà distributtiva biex timmultiplika 4 b'n^{2}-2n+1.