swetha

• Mar 14th, 2006

 

3/2

swetha

• Mar 14th, 2006

 

ans:3/2

hussain

• Apr 4th, 2006

 

ans : x = 2

(2x-1)*(2x-3)*(2x-5)*(2x-7) = 9

(2*2-1)*(2*2-3)*(2*2-5)*(2*2-7) = 9

amrutha_manyamgari

 Profile Answers by amrutha_manyamgari 

• May 10th, 2006

 

the answer is 2 ,

if it is 3/2 then 2x-3=0

divya

• Oct 3rd, 2006

 

ya the answer is 2.

if its 3/2..c the value becomes 0 on the LHS.

shrikant kh

 Profile Answers by shrikant kh 

• May 23rd, 2008

 

x=2

put  x=1 in the above equation
you will get L.H.S != R.H.S

now put x=2

like that you will get L.H.S=R.H.S

so
X=2

Mahbubul Haque

 Profile Answers by Mahbubul Haque 

• Jun 29th, 2008

 

Ans: 1.5

Explanation: The equation have four roots, are 2, 2, 3.5811, .41881
after some simplyfication we get (x-2)^2*(2x^2-8x+3)=0; means (2x^2-8x+3)=0; comparing quadratic equation ax^2+bx+c=0; The product of roots is c/a yeilds 3/2=1.5.
Thanks

divi

• Sep 18th, 2011

 

there the answer is product of irrational roots only not all the roots..so answer is 3/2 only

vijayan

• Feb 27th, 2012

 

For this question we should realize the answer through answer only...we should substitute the options then finally we can recognize the correct answer...if we substitute 3/2 instead of x,we will get zero...by substituting other answers we can't...then the answer is 3/2

akshatha hebbar

• Sep 12th, 2014

 

Product of irrational roots...
X= ((1/2)*(4+√10))*((1/2)*4-√10)
X=3/2

Naveen

• Sep 28th, 2014

 

This is a fourth degree equation. Therefore it will have 4 roots (real or imaginary). It clearly has 2 equal roots equal to 2. Constant term = (-1)*(-3)*(-5)*(-7) -9 = 96. Coefficient of x^4 = 2*2*2*2 = 16
Hence product of other 2 roots = 96/(16*2*2) = 3/2 = 1.5

SHUBHAM KARANJKAR

• Sep 13th, 2017

 

-3x-1x1x3=9
So x=3

Balloo

• Oct 30th, 2018

 

8

Bhawna

• Jun 23rd, 2020

 

How could you find out that there are 2 equal roots=2