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Problemi Simili mit-Tiftix tal-Web

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2x^{2}+2xy-4\left(x+y\right)^{2}
Uża l-propjetà distributtiva biex timmultiplika 2x b'x+y.
2x^{2}+2xy-4\left(x^{2}+2xy+y^{2}\right)
Uża teorema binomjali \left(a+b\right)^{2}=a^{2}+2ab+b^{2} biex tespandi \left(x+y\right)^{2}.
2x^{2}+2xy-4x^{2}-8xy-4y^{2}
Uża l-propjetà distributtiva biex timmultiplika -4 b'x^{2}+2xy+y^{2}.
-2x^{2}+2xy-8xy-4y^{2}
Ikkombina 2x^{2} u -4x^{2} biex tikseb -2x^{2}.
-2x^{2}-6xy-4y^{2}
Ikkombina 2xy u -8xy biex tikseb -6xy.
2x^{2}+2xy-4\left(x+y\right)^{2}
Uża l-propjetà distributtiva biex timmultiplika 2x b'x+y.
2x^{2}+2xy-4\left(x^{2}+2xy+y^{2}\right)
Uża teorema binomjali \left(a+b\right)^{2}=a^{2}+2ab+b^{2} biex tespandi \left(x+y\right)^{2}.
2x^{2}+2xy-4x^{2}-8xy-4y^{2}
Uża l-propjetà distributtiva biex timmultiplika -4 b'x^{2}+2xy+y^{2}.
-2x^{2}+2xy-8xy-4y^{2}
Ikkombina 2x^{2} u -4x^{2} biex tikseb -2x^{2}.
-2x^{2}-6xy-4y^{2}
Ikkombina 2xy u -8xy biex tikseb -6xy.