Request a call back

Join NOW to get access to exclusive study material for best results

CBSE Class 11-science Answered

find the value of p and q if the equation px²+5x+2=0 and 3x²+10x+q=0 have both roots in common.
Asked by ssroul.tcbls | 02 Jul, 2020, 07:15: PM
Expert Answer
The given quadratic equations are:
px2+5x+2=0 ... (i)
3x2+10x+q=0 ... (ii)
 
L e t space alpha space a n d space beta space b e space t h e space r o o t s space o f space t h e s e space t w o space q u a d r a t i c space e q u a t i o n s
rightwards double arrow alpha plus beta equals negative 5 over p space space a n d space space alpha beta equals 2 over p
A l s o comma space alpha plus beta equals negative 10 over 3 space space a n d space space alpha beta equals q over 3
rightwards double arrow negative 5 over p equals negative 10 over 3 space space a n d space space 2 over p equals q over 3
rightwards double arrow p equals 3 over 2 space a n d space p q equals 6
rightwards double arrow p equals 3 over 2 space a n d space q equals 6 over p
rightwards double arrow p equals 3 over 2 space a n d space q equals 6 over 3 cross times 2 equals 4
rightwards double arrow p equals 3 over 2 space space a n d space space q equals 4
Answered by Renu Varma | 03 Jul, 2020, 12:48: PM
CBSE 11-science - Maths
Asked by rajshekhara348 | 20 Jun, 2022, 11:23: PM
ANSWERED BY EXPERT
CBSE 11-science - Maths
Asked by sandeepkumarbhadauria41 | 15 Sep, 2021, 02:52: PM
ANSWERED BY EXPERT
CBSE 11-science - Maths
Asked by Suchismitasingha18 | 07 Aug, 2021, 04:44: PM
ANSWERED BY EXPERT
CBSE 11-science - Maths
Asked by sohailsidmd002 | 11 Oct, 2020, 02:35: PM
ANSWERED BY EXPERT
CBSE 11-science - Maths
Asked by ssroul.tcbls | 02 Jul, 2020, 07:15: PM
ANSWERED BY EXPERT
CBSE 11-science - Maths
Asked by avinashjha3012 | 22 Jun, 2020, 05:41: PM
ANSWERED BY EXPERT
CBSE 11-science - Maths
Asked by drhimasingh | 26 May, 2020, 11:31: PM
ANSWERED BY EXPERT
CBSE 11-science - Maths
Asked by amanamit818 | 06 Oct, 2019, 11:03: AM
ANSWERED BY EXPERT
CBSE 11-science - Maths
Asked by aahnik.mohanty | 21 Jun, 2019, 09:00: PM
ANSWERED BY EXPERT
CBSE 11-science - Maths
Asked by aahnik.mohanty | 19 Jun, 2019, 09:05: PM
ANSWERED BY EXPERT

Start your hassle free Education Franchisee and grow your business!

Know more
×