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Problemi Simili mit-Tiftix tal-Web

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5\left(36-12z+z^{2}-5\right)
Uża teorema binomjali \left(a-b\right)^{2}=a^{2}-2ab+b^{2} biex tespandi \left(6-z\right)^{2}.
5\left(31-12z+z^{2}\right)
Naqqas 5 minn 36 biex tikseb 31.
155-60z+5z^{2}
Uża l-propjetà distributtiva biex timmultiplika 5 b'31-12z+z^{2}.
5\left(36-12z+z^{2}-5\right)
Uża teorema binomjali \left(a-b\right)^{2}=a^{2}-2ab+b^{2} biex tespandi \left(6-z\right)^{2}.
5\left(31-12z+z^{2}\right)
Naqqas 5 minn 36 biex tikseb 31.
155-60z+5z^{2}
Uża l-propjetà distributtiva biex timmultiplika 5 b'31-12z+z^{2}.