Answer :
We have,
p (x) = 8x3 - ax2 - x + 2
Put x =
p () = 8 ()3 – a ()2 – () + 2
= 8 × 
– a × 
+ 
+ 2
= -1 - 
+ 
+ 2
= 
- 
Given that,
x = is a root of p (x)
p () = 0
Therefore,
- 
= 0
= 
2a = 12
a = 6
Rate this question :
How useful is this solution?
We strive to provide quality solutions. Please rate us to serve you better.
Related Videos
Division of Polynomials46 mins
Quiz- Test what you Know Part 246 mins
Polynomials- Introduction45 mins
Identities Ke Master Bane47 mins
Quiz- Test what you Know64 mins
Champ Quiz | Polynomials29 mins
Smart Revision | Polynomials Identities39 mins
Genius Quiz | Division of Algebraic Expressions37 mins
Quiz | Division of Polynomials38 mins
Basic understanding of Polynomials37 mins
Division of Polynomials46 minsQuiz- Test what you Know Part 246 minsPolynomials- Introduction45 minsIdentities Ke Master Bane47 minsQuiz- Test what you Know64 minsChamp Quiz | Polynomials29 minsSmart Revision | Polynomials Identities39 minsGenius Quiz | Division of Algebraic Expressions37 minsQuiz | Division of Polynomials38 minsBasic understanding of Polynomials37 minsTry our Mini CourseMaster Important Topics in 7 DaysLearn from IITians, NITians, Doctors & Academic Experts
view all courses
Dedicated counsellor for each student
24X7 Doubt Resolution
Daily Report Card
Detailed Performance Evaluation
RELATED QUESTIONS :
The zeroes of the
RS Aggarwal & V Aggarwal - MathematicsZero of the polyn
RS Aggarwal & V Aggarwal - MathematicsIf <img wid
RS Aggarwal & V Aggarwal - MathematicsIf 2 and -1/3 are
RS Aggarwal & V Aggarwal - MathematicsIf (x + 1) is a f
RS Aggarwal & V Aggarwal - MathematicsIf (x2
RS Aggarwal & V Aggarwal - MathematicsThe zeroes of the
RS Aggarwal & V Aggarwal - MathematicsThe zeroes of the
RS Aggarwal & V Aggarwal - MathematicsIf p(x) = x3
RS Aggarwal & V Aggarwal - MathematicsIf p(x) = (x
RS Aggarwal & V Aggarwal - Mathematics