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Problemi Simili mit-Tiftix tal-Web

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9\left(\sqrt{5}\right)^{2}-6\sqrt{5}\sqrt{2}+\left(\sqrt{2}\right)^{2}
Uża teorema binomjali \left(a-b\right)^{2}=a^{2}-2ab+b^{2} biex tespandi \left(3\sqrt{5}-\sqrt{2}\right)^{2}.
9\times 5-6\sqrt{5}\sqrt{2}+\left(\sqrt{2}\right)^{2}
Il-kwadrat ta' \sqrt{5} huwa 5.
45-6\sqrt{5}\sqrt{2}+\left(\sqrt{2}\right)^{2}
Immultiplika 9 u 5 biex tikseb 45.
45-6\sqrt{10}+\left(\sqrt{2}\right)^{2}
Biex timmultiplika \sqrt{5} u \sqrt{2}, immultiplika n-numri taħt l-għerq kwadrat.
45-6\sqrt{10}+2
Il-kwadrat ta' \sqrt{2} huwa 2.
47-6\sqrt{10}
Żid 45 u 2 biex tikseb 47.
9\left(\sqrt{5}\right)^{2}-6\sqrt{5}\sqrt{2}+\left(\sqrt{2}\right)^{2}
Uża teorema binomjali \left(a-b\right)^{2}=a^{2}-2ab+b^{2} biex tespandi \left(3\sqrt{5}-\sqrt{2}\right)^{2}.
9\times 5-6\sqrt{5}\sqrt{2}+\left(\sqrt{2}\right)^{2}
Il-kwadrat ta' \sqrt{5} huwa 5.
45-6\sqrt{5}\sqrt{2}+\left(\sqrt{2}\right)^{2}
Immultiplika 9 u 5 biex tikseb 45.
45-6\sqrt{10}+\left(\sqrt{2}\right)^{2}
Biex timmultiplika \sqrt{5} u \sqrt{2}, immultiplika n-numri taħt l-għerq kwadrat.
45-6\sqrt{10}+2
Il-kwadrat ta' \sqrt{2} huwa 2.
47-6\sqrt{10}
Żid 45 u 2 biex tikseb 47.