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Problemi Simili mit-Tiftix tal-Web

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x^{2}-y^{2}-\left(x+y\right)^{2}+2y\left(y-x\right)
Ikkunsidra li \left(x-y\right)\left(x+y\right). Il-multiplikazzjoni tista' tiġi ttrasformata fid-differenza tal-kwadrati li jużaw ir-regola: \left(a-b\right)\left(a+b\right)=a^{2}-b^{2}.
x^{2}-y^{2}-\left(x^{2}+2xy+y^{2}\right)+2y\left(y-x\right)
Uża teorema binomjali \left(a+b\right)^{2}=a^{2}+2ab+b^{2} biex tespandi \left(x+y\right)^{2}.
x^{2}-y^{2}-x^{2}-2xy-y^{2}+2y\left(y-x\right)
Biex issib l-oppost ta' x^{2}+2xy+y^{2}, sib l-oppost ta' kull terminu.
-y^{2}-2xy-y^{2}+2y\left(y-x\right)
Ikkombina x^{2} u -x^{2} biex tikseb 0.
-2y^{2}-2xy+2y\left(y-x\right)
Ikkombina -y^{2} u -y^{2} biex tikseb -2y^{2}.
-2y^{2}-2xy+2y^{2}-2yx
Uża l-propjetà distributtiva biex timmultiplika 2y b'y-x.
-2xy-2yx
Ikkombina -2y^{2} u 2y^{2} biex tikseb 0.
-4xy
Ikkombina -2xy u -2yx biex tikseb -4xy.
x^{2}-y^{2}-\left(x+y\right)^{2}+2y\left(y-x\right)
Ikkunsidra li \left(x-y\right)\left(x+y\right). Il-multiplikazzjoni tista' tiġi ttrasformata fid-differenza tal-kwadrati li jużaw ir-regola: \left(a-b\right)\left(a+b\right)=a^{2}-b^{2}.
x^{2}-y^{2}-\left(x^{2}+2xy+y^{2}\right)+2y\left(y-x\right)
Uża teorema binomjali \left(a+b\right)^{2}=a^{2}+2ab+b^{2} biex tespandi \left(x+y\right)^{2}.
x^{2}-y^{2}-x^{2}-2xy-y^{2}+2y\left(y-x\right)
Biex issib l-oppost ta' x^{2}+2xy+y^{2}, sib l-oppost ta' kull terminu.
-y^{2}-2xy-y^{2}+2y\left(y-x\right)
Ikkombina x^{2} u -x^{2} biex tikseb 0.
-2y^{2}-2xy+2y\left(y-x\right)
Ikkombina -y^{2} u -y^{2} biex tikseb -2y^{2}.
-2y^{2}-2xy+2y^{2}-2yx
Uża l-propjetà distributtiva biex timmultiplika 2y b'y-x.
-2xy-2yx
Ikkombina -2y^{2} u 2y^{2} biex tikseb 0.
-4xy
Ikkombina -2xy u -2yx biex tikseb -4xy.