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Problemi Simili mit-Tiftix tal-Web

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-2\left(9+30u+25u^{2}\right)
Uża teorema binomjali \left(a-b\right)^{2}=a^{2}-2ab+b^{2} biex tespandi \left(-3-5u\right)^{2}.
-18-60u-50u^{2}
Uża l-propjetà distributtiva biex timmultiplika -2 b'9+30u+25u^{2}.
-2\left(9+30u+25u^{2}\right)
Uża teorema binomjali \left(a-b\right)^{2}=a^{2}-2ab+b^{2} biex tespandi \left(-3-5u\right)^{2}.
-18-60u-50u^{2}
Uża l-propjetà distributtiva biex timmultiplika -2 b'9+30u+25u^{2}.