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Solvi għal x (complex solution)
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Problemi Simili mit-Tiftix tal-Web

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-2x^{2}+19x-42+7=\left(-x+7\right)\left(2x-5\right)
Uża l-propjetà distributtiva biex timmultiplika -2x+7 b'x-6 u kkombina termini simili.
-2x^{2}+19x-35=\left(-x+7\right)\left(2x-5\right)
Żid -42 u 7 biex tikseb -35.
-2x^{2}+19x-35=2\left(-x\right)x-5\left(-x\right)+14x-35
Uża l-propjetà distributtiva biex timmultiplika -x+7 b'2x-5.
-2x^{2}+19x-35=2\left(-x\right)x+5x+14x-35
Immultiplika -5 u -1 biex tikseb 5.
-2x^{2}+19x-35=2\left(-x\right)x+19x-35
Ikkombina 5x u 14x biex tikseb 19x.
-2x^{2}+19x-35-2\left(-x\right)x=19x-35
Naqqas 2\left(-x\right)x miż-żewġ naħat.
-2x^{2}+19x-35-2\left(-x\right)x-19x=-35
Naqqas 19x miż-żewġ naħat.
-2x^{2}+19x-35-2\left(-1\right)x^{2}-19x=-35
Immultiplika x u x biex tikseb x^{2}.
-2x^{2}+19x-35+2x^{2}-19x=-35
Immultiplika -2 u -1 biex tikseb 2.
19x-35-19x=-35
Ikkombina -2x^{2} u 2x^{2} biex tikseb 0.
-35=-35
Ikkombina 19x u -19x biex tikseb 0.
\text{true}
Qabbel -35 u -35.
x\in \mathrm{C}
Din hija vera għal kwalunkwe x.
-2x^{2}+19x-42+7=\left(-x+7\right)\left(2x-5\right)
Uża l-propjetà distributtiva biex timmultiplika -2x+7 b'x-6 u kkombina termini simili.
-2x^{2}+19x-35=\left(-x+7\right)\left(2x-5\right)
Żid -42 u 7 biex tikseb -35.
-2x^{2}+19x-35=2\left(-x\right)x-5\left(-x\right)+14x-35
Uża l-propjetà distributtiva biex timmultiplika -x+7 b'2x-5.
-2x^{2}+19x-35=2\left(-x\right)x+5x+14x-35
Immultiplika -5 u -1 biex tikseb 5.
-2x^{2}+19x-35=2\left(-x\right)x+19x-35
Ikkombina 5x u 14x biex tikseb 19x.
-2x^{2}+19x-35-2\left(-x\right)x=19x-35
Naqqas 2\left(-x\right)x miż-żewġ naħat.
-2x^{2}+19x-35-2\left(-x\right)x-19x=-35
Naqqas 19x miż-żewġ naħat.
-2x^{2}+19x-35-2\left(-1\right)x^{2}-19x=-35
Immultiplika x u x biex tikseb x^{2}.
-2x^{2}+19x-35+2x^{2}-19x=-35
Immultiplika -2 u -1 biex tikseb 2.
19x-35-19x=-35
Ikkombina -2x^{2} u 2x^{2} biex tikseb 0.
-35=-35
Ikkombina 19x u -19x biex tikseb 0.
\text{true}
Qabbel -35 u -35.
x\in \mathrm{R}
Din hija vera għal kwalunkwe x.