Multiple Choice Questions on Given than alpha and beta are the roots of the equation 3x sup2 5x 12 0 then find the value of ........... for CDS Exam Preparation

Back to Main Page

Multiple Choice Questions

Given than alpha and beta are the roots of the equation 3x sup2 5x 12 0 then find the value of ...........

Quantitative Aptitude (CDS) Quadratic Equations
    Download Solution PDF

    Given than α and β are the roots of the equation 3x²-5x +12  = 0 then find the value of the α + 2αβ² +β + 2α² β.

    7/3

    Incorrect Answer

    30

    Incorrect Answer

    36

    Incorrect Answer

    15

    Correct Answer
    छोटे Courses बड़े Results
    Master Quadratic Equations
    Prepare through Micro-courses
    Try Now
    Explanation:

    α+ β= -b/a=5/3 
    α×β=c/a=12/3 = 4
     α + 2αβ² +β + 2α²β =(α+β)+2αβ(α+β) 
    Put the value of (α+β) & αβ we get = 15

    By: bhavesh kumar singh
    ProfileResources

    Let's Discuss

    Master
    Quadratic Equations
    With abhipedia
    Micro Courses
    Try Now
    What our students have to say
    Review on us
    Download Abhipedia Android App

    Access to prime resources

    Downlod from playstore
    download android app download android app for free