सोडोवचें 125(2x-1)^3+2=66

$$125 ( 2 x - 1 ) ^ { 3 } + 2 = 66$$

x खातीर सोडोवचें (जटील सोल्यूशन)

$$x=\frac{9}{10}=0.9$$

$$x=\frac{\sqrt{3}i}{5}+\frac{3}{10}\approx 0.3+0.346410162i$$

$$x=-\frac{\sqrt{3}i}{5}+\frac{3}{10}\approx 0.3-0.346410162i$$

सोडोवणी पांवडे

बायनोमियल प्रमेयाचो वापर करून \left(a-b\right)^{3}=a^{3}-3a^{2}b+3ab^{2}-b^{3} विस्तारावचें \left(2x-1\right)^{3}.

$$125\left(8x^{3}-12x^{2}+6x-1\right)+2=66$$

8x^{3}-12x^{2}+6x-1 न 125 गुणपाक विभाजक विशमाचो वापर करचो.

$$1000x^{3}-1500x^{2}+750x-125+2=66$$

-123 मेळोवंक -125 आनी 2 ची बेरीज करची.

$$1000x^{3}-1500x^{2}+750x-123=66$$

दोनूय कुशींतल्यान 66 वजा करचें.

$$1000x^{3}-1500x^{2}+750x-123-66=0$$

-189 मेळोवंक -123 आनी 66 वजा करचे.

$$1000x^{3}-1500x^{2}+750x-189=0$$

रॅशनल रूट थियरम प्रमाणें, पोलिनोमियलाचे सगळे रॅशनल रुट्स मुखावयल्या स्वरुपात आसतात \frac{p}{q}, जंय p थीर संज्ञेक भाग लायता -189 आनी q भागता पुरक 1000. सगळे उमेदवारांची सुची \frac{p}{q}.

$$±\frac{189}{1000},±\frac{189}{500},±\frac{189}{250},±\frac{189}{200},±\frac{189}{125},±\frac{189}{100},±\frac{189}{50},±\frac{189}{40},±\frac{189}{25},±\frac{189}{20},±\frac{189}{10},±\frac{189}{8},±\frac{189}{5},±\frac{189}{4},±\frac{189}{2},±189,±\frac{63}{1000},±\frac{63}{500},±\frac{63}{250},±\frac{63}{200},±\frac{63}{125},±\frac{63}{100},±\frac{63}{50},±\frac{63}{40},±\frac{63}{25},±\frac{63}{20},±\frac{63}{10},±\frac{63}{8},±\frac{63}{5},±\frac{63}{4},±\frac{63}{2},±63,±\frac{27}{1000},±\frac{27}{500},±\frac{27}{250},±\frac{27}{200},±\frac{27}{125},±\frac{27}{100},±\frac{27}{50},±\frac{27}{40},±\frac{27}{25},±\frac{27}{20},±\frac{27}{10},±\frac{27}{8},±\frac{27}{5},±\frac{27}{4},±\frac{27}{2},±27,±\frac{21}{1000},±\frac{21}{500},±\frac{21}{250},±\frac{21}{200},±\frac{21}{125},±\frac{21}{100},±\frac{21}{50},±\frac{21}{40},±\frac{21}{25},±\frac{21}{20},±\frac{21}{10},±\frac{21}{8},±\frac{21}{5},±\frac{21}{4},±\frac{21}{2},±21,±\frac{9}{1000},±\frac{9}{500},±\frac{9}{250},±\frac{9}{200},±\frac{9}{125},±\frac{9}{100},±\frac{9}{50},±\frac{9}{40},±\frac{9}{25},±\frac{9}{20},±\frac{9}{10},±\frac{9}{8},±\frac{9}{5},±\frac{9}{4},±\frac{9}{2},±9,±\frac{7}{1000},±\frac{7}{500},±\frac{7}{250},±\frac{7}{200},±\frac{7}{125},±\frac{7}{100},±\frac{7}{50},±\frac{7}{40},±\frac{7}{25},±\frac{7}{20},±\frac{7}{10},±\frac{7}{8},±\frac{7}{5},±\frac{7}{4},±\frac{7}{2},±7,±\frac{3}{1000},±\frac{3}{500},±\frac{3}{250},±\frac{3}{200},±\frac{3}{125},±\frac{3}{100},±\frac{3}{50},±\frac{3}{40},±\frac{3}{25},±\frac{3}{20},±\frac{3}{10},±\frac{3}{8},±\frac{3}{5},±\frac{3}{4},±\frac{3}{2},±3,±\frac{1}{1000},±\frac{1}{500},±\frac{1}{250},±\frac{1}{200},±\frac{1}{125},±\frac{1}{100},±\frac{1}{50},±\frac{1}{40},±\frac{1}{25},±\frac{1}{20},±\frac{1}{10},±\frac{1}{8},±\frac{1}{5},±\frac{1}{4},±\frac{1}{2},±1$$

सगळीं पूर्णांक मोलां यत्न करून तसो एक मूळ सोदून काडचो, ल्हानातल्यान सुरू करूंन निव्वळ शून्य. पूर्णांक मुळां मेळूंक नासल्यार परत यत्न करचो.

$$x=\frac{9}{10}$$

फॅक्टर थियरमा प्रमाणें, x-k दरेक रूट खातीर पोलिनोमियल फॅक्टर करात k. 100x^{2}-60x+21 मेळोवंक 1000x^{3}-1500x^{2}+750x-189 क 10\left(x-\frac{9}{10}\right)=10x-9 न भाग लावचो. समिकरण सोडोवंक, निकाल हाचे समान 0.

$$100x^{2}-60x+21=0$$

फॉर्म ax^{2}+bx+c=0 चीं सगळीं समिकरणां क्वॉड्रेटिक फॉर्मूला वापरून सोडोवंक शकतात: \frac{-b±\sqrt{b^{2}-4ac}}{2a}. क्वॉड्रेटिक फॉर्मूलात a च्या सुवातेर 100 घेवचो, b खातीर -60, आनी c खातीर 21 घेवचो.

$$x=\frac{-\left(-60\right)±\sqrt{\left(-60\right)^{2}-4\times 100\times 21}}{2\times 100}$$

मेजणी करची.

$$x=\frac{60±\sqrt{-4800}}{200}$$

जेन्ना ± हो अदीक आनी जेन्ना ± वजा आसता तेन्ना 100x^{2}-60x+21=0 समिकरण सोडोवचें.

$$x=-\frac{\sqrt{3}i}{5}+\frac{3}{10} x=\frac{\sqrt{3}i}{5}+\frac{3}{10}$$

सगळीं समाधानां प्राप्त सुची.

$$x=\frac{9}{10} x=-\frac{\sqrt{3}i}{5}+\frac{3}{10} x=\frac{\sqrt{3}i}{5}+\frac{3}{10}$$

x खातीर सोडोवचें

$$x=\frac{9}{10}=0.9$$

सोडोवणी पांवडे

बायनोमियल प्रमेयाचो वापर करून \left(a-b\right)^{3}=a^{3}-3a^{2}b+3ab^{2}-b^{3} विस्तारावचें \left(2x-1\right)^{3}.

$$125\left(8x^{3}-12x^{2}+6x-1\right)+2=66$$

8x^{3}-12x^{2}+6x-1 न 125 गुणपाक विभाजक विशमाचो वापर करचो.

$$1000x^{3}-1500x^{2}+750x-125+2=66$$

-123 मेळोवंक -125 आनी 2 ची बेरीज करची.

$$1000x^{3}-1500x^{2}+750x-123=66$$

दोनूय कुशींतल्यान 66 वजा करचें.

$$1000x^{3}-1500x^{2}+750x-123-66=0$$

-189 मेळोवंक -123 आनी 66 वजा करचे.

$$1000x^{3}-1500x^{2}+750x-189=0$$

रॅशनल रूट थियरम प्रमाणें, पोलिनोमियलाचे सगळे रॅशनल रुट्स मुखावयल्या स्वरुपात आसतात \frac{p}{q}, जंय p थीर संज्ञेक भाग लायता -189 आनी q भागता पुरक 1000. सगळे उमेदवारांची सुची \frac{p}{q}.

$$±\frac{189}{1000},±\frac{189}{500},±\frac{189}{250},±\frac{189}{200},±\frac{189}{125},±\frac{189}{100},±\frac{189}{50},±\frac{189}{40},±\frac{189}{25},±\frac{189}{20},±\frac{189}{10},±\frac{189}{8},±\frac{189}{5},±\frac{189}{4},±\frac{189}{2},±189,±\frac{63}{1000},±\frac{63}{500},±\frac{63}{250},±\frac{63}{200},±\frac{63}{125},±\frac{63}{100},±\frac{63}{50},±\frac{63}{40},±\frac{63}{25},±\frac{63}{20},±\frac{63}{10},±\frac{63}{8},±\frac{63}{5},±\frac{63}{4},±\frac{63}{2},±63,±\frac{27}{1000},±\frac{27}{500},±\frac{27}{250},±\frac{27}{200},±\frac{27}{125},±\frac{27}{100},±\frac{27}{50},±\frac{27}{40},±\frac{27}{25},±\frac{27}{20},±\frac{27}{10},±\frac{27}{8},±\frac{27}{5},±\frac{27}{4},±\frac{27}{2},±27,±\frac{21}{1000},±\frac{21}{500},±\frac{21}{250},±\frac{21}{200},±\frac{21}{125},±\frac{21}{100},±\frac{21}{50},±\frac{21}{40},±\frac{21}{25},±\frac{21}{20},±\frac{21}{10},±\frac{21}{8},±\frac{21}{5},±\frac{21}{4},±\frac{21}{2},±21,±\frac{9}{1000},±\frac{9}{500},±\frac{9}{250},±\frac{9}{200},±\frac{9}{125},±\frac{9}{100},±\frac{9}{50},±\frac{9}{40},±\frac{9}{25},±\frac{9}{20},±\frac{9}{10},±\frac{9}{8},±\frac{9}{5},±\frac{9}{4},±\frac{9}{2},±9,±\frac{7}{1000},±\frac{7}{500},±\frac{7}{250},±\frac{7}{200},±\frac{7}{125},±\frac{7}{100},±\frac{7}{50},±\frac{7}{40},±\frac{7}{25},±\frac{7}{20},±\frac{7}{10},±\frac{7}{8},±\frac{7}{5},±\frac{7}{4},±\frac{7}{2},±7,±\frac{3}{1000},±\frac{3}{500},±\frac{3}{250},±\frac{3}{200},±\frac{3}{125},±\frac{3}{100},±\frac{3}{50},±\frac{3}{40},±\frac{3}{25},±\frac{3}{20},±\frac{3}{10},±\frac{3}{8},±\frac{3}{5},±\frac{3}{4},±\frac{3}{2},±3,±\frac{1}{1000},±\frac{1}{500},±\frac{1}{250},±\frac{1}{200},±\frac{1}{125},±\frac{1}{100},±\frac{1}{50},±\frac{1}{40},±\frac{1}{25},±\frac{1}{20},±\frac{1}{10},±\frac{1}{8},±\frac{1}{5},±\frac{1}{4},±\frac{1}{2},±1$$

सगळीं पूर्णांक मोलां यत्न करून तसो एक मूळ सोदून काडचो, ल्हानातल्यान सुरू करूंन निव्वळ शून्य. पूर्णांक मुळां मेळूंक नासल्यार परत यत्न करचो.

$$x=\frac{9}{10}$$

फॅक्टर थियरमा प्रमाणें, x-k दरेक रूट खातीर पोलिनोमियल फॅक्टर करात k. 100x^{2}-60x+21 मेळोवंक 1000x^{3}-1500x^{2}+750x-189 क 10\left(x-\frac{9}{10}\right)=10x-9 न भाग लावचो. समिकरण सोडोवंक, निकाल हाचे समान 0.

$$100x^{2}-60x+21=0$$

फॉर्म ax^{2}+bx+c=0 चीं सगळीं समिकरणां क्वॉड्रेटिक फॉर्मूला वापरून सोडोवंक शकतात: \frac{-b±\sqrt{b^{2}-4ac}}{2a}. क्वॉड्रेटिक फॉर्मूलात a च्या सुवातेर 100 घेवचो, b खातीर -60, आनी c खातीर 21 घेवचो.

$$x=\frac{-\left(-60\right)±\sqrt{\left(-60\right)^{2}-4\times 100\times 21}}{2\times 100}$$

मेजणी करची.

$$x=\frac{60±\sqrt{-4800}}{200}$$

नकारात्मक आंकड्याचो वर्गमूळ वास्तव क्षेत्रांत व्याख्यीत करूंक नाशिल्ल्यान, हांगा सोल्यूशन ना.

$$x\in \emptyset$$

सगळीं समाधानां प्राप्त सुची.

$$x=\frac{9}{10}$$