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Problemi Simili mit-Tiftix tal-Web

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9m^{2}-6mn+n^{2}+n\left(2m-n\right)
Uża teorema binomjali \left(a-b\right)^{2}=a^{2}-2ab+b^{2} biex tespandi \left(3m-n\right)^{2}.
9m^{2}-6mn+n^{2}+2nm-n^{2}
Uża l-propjetà distributtiva biex timmultiplika n b'2m-n.
9m^{2}-4mn+n^{2}-n^{2}
Ikkombina -6mn u 2nm biex tikseb -4mn.
9m^{2}-4mn
Ikkombina n^{2} u -n^{2} biex tikseb 0.
9m^{2}-6mn+n^{2}+n\left(2m-n\right)
Uża teorema binomjali \left(a-b\right)^{2}=a^{2}-2ab+b^{2} biex tespandi \left(3m-n\right)^{2}.
9m^{2}-6mn+n^{2}+2nm-n^{2}
Uża l-propjetà distributtiva biex timmultiplika n b'2m-n.
9m^{2}-4mn+n^{2}-n^{2}
Ikkombina -6mn u 2nm biex tikseb -4mn.
9m^{2}-4mn
Ikkombina n^{2} u -n^{2} biex tikseb 0.