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Problemi Simili mit-Tiftix tal-Web

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25-x^{2}+\left(x-5\right)^{2}+\left(2x-10\right)\left(x+3\right)
Ikkunsidra li \left(5-x\right)\left(5+x\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}. Ikkwadra 5.
25-x^{2}+x^{2}-10x+25+\left(2x-10\right)\left(x+3\right)
Uża teorema binomjali \left(a-b\right)^{2}=a^{2}-2ab+b^{2} biex tespandi \left(x-5\right)^{2}.
25-10x+25+\left(2x-10\right)\left(x+3\right)
Ikkombina -x^{2} u x^{2} biex tikseb 0.
50-10x+\left(2x-10\right)\left(x+3\right)
Żid 25 u 25 biex tikseb 50.
50-10x+2x^{2}-4x-30
Uża l-propjetà distributtiva biex timmultiplika 2x-10 b'x+3 u kkombina termini simili.
50-14x+2x^{2}-30
Ikkombina -10x u -4x biex tikseb -14x.
20-14x+2x^{2}
Naqqas 30 minn 50 biex tikseb 20.
25-x^{2}+\left(x-5\right)^{2}+\left(2x-10\right)\left(x+3\right)
Ikkunsidra li \left(5-x\right)\left(5+x\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}. Ikkwadra 5.
25-x^{2}+x^{2}-10x+25+\left(2x-10\right)\left(x+3\right)
Uża teorema binomjali \left(a-b\right)^{2}=a^{2}-2ab+b^{2} biex tespandi \left(x-5\right)^{2}.
25-10x+25+\left(2x-10\right)\left(x+3\right)
Ikkombina -x^{2} u x^{2} biex tikseb 0.
50-10x+\left(2x-10\right)\left(x+3\right)
Żid 25 u 25 biex tikseb 50.
50-10x+2x^{2}-4x-30
Uża l-propjetà distributtiva biex timmultiplika 2x-10 b'x+3 u kkombina termini simili.
50-14x+2x^{2}-30
Ikkombina -10x u -4x biex tikseb -14x.
20-14x+2x^{2}
Naqqas 30 minn 50 biex tikseb 20.