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CBSE Class 10 Answered

Please solve this question 
question image
Asked by vikasg13.hardware | 28 Jun, 2018, 05:58: AM
answered-by-expert Expert Answer
According to the question,
x3 + 3x + 5 = 0 → x3 + 0x2 + 3x + 5 = 0 
Error converting from MathML to accessible text.
begin mathsize 16px style straight x subscript 1 plus straight x subscript 2 plus straight x subscript 3 equals fraction numerator negative coefficient space of space straight x squared over denominator coefficient space of space straight x cubed end fraction equals 0
straight x subscript 1 straight x subscript 2 plus straight x subscript 2 straight x subscript 3 plus straight x subscript 3 straight x subscript 1 equals fraction numerator coefficient space of space straight x over denominator coefficient space of space straight x cubed end fraction equals 3
straight x subscript 1 straight x subscript 2 straight x subscript 3 equals fraction numerator negative constant over denominator coefficient space of space straight x cubed end fraction equals negative 5
straight x subscript 1 plus 1 over straight x subscript 1 plus straight x subscript 2 plus 1 over straight x subscript 2 plus straight x subscript 3 plus 1 over straight x subscript 3
equals straight x subscript 1 plus straight x subscript 2 plus straight x subscript 3 plus 1 over straight x subscript 1 plus 1 over straight x subscript 2 plus 1 over straight x subscript 3
equals 0 plus fraction numerator straight x subscript 1 straight x subscript 2 plus straight x subscript 2 straight x subscript 3 plus straight x subscript 3 straight x subscript 1 over denominator straight x subscript 1 straight x subscript 2 straight x subscript 3 end fraction
equals fraction numerator negative 3 over denominator 5 end fraction end style
 
Answered by Sneha shidid | 28 Jun, 2018, 10:04: AM

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