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Problemi Simili mit-Tiftix tal-Web

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x\left(900-60x+x^{2}\right)-4000
Uża teorema binomjali \left(a-b\right)^{2}=a^{2}-2ab+b^{2} biex tespandi \left(30-x\right)^{2}.
900x-60x^{2}+x^{3}-4000
Uża l-propjetà distributtiva biex timmultiplika x b'900-60x+x^{2}.
x\left(900-60x+x^{2}\right)-4000
Uża teorema binomjali \left(a-b\right)^{2}=a^{2}-2ab+b^{2} biex tespandi \left(30-x\right)^{2}.
900x-60x^{2}+x^{3}-4000
Uża l-propjetà distributtiva biex timmultiplika x b'900-60x+x^{2}.