Analytical Ability - What is the product of the irrational roots of the equation (2x-1)(2x-3)(2x-5)(2x-7)=9?

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What is the product of the irrational roots of
the equation (2x-1)(2x-3)(2x-5)(2x-7)=9?

Total Answers and Comments: 7

Last Update: June 29, 2008 Asked by: mannava_05

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Best Rated Answer

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Submitted by: swetha

3/2

Above answer was rated as good by the following members:
Mahbubul Haque, rythm81

March 14, 2006 05:45:41

swetha

RE: What is the product of the irrational roots of

3/2

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1 1

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March 14, 2006 06:16:39

swetha

RE: What is the product of the irrational roots of

ans:3/2

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1 0

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April 04, 2006 00:49:20

hussain

RE: What is the product of the irrational roots of

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

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May 10, 2006 00:38:33

amrutha_manyamgari

Member Since: May 2006 Contribution: 1

RE: What is the product of the irrational roots of

the answer is 2

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

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October 03, 2006 13:27:22

divya

RE: What is the product of the irrational roots of

ya the answer is 2.

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

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May 23, 2008 06:09:54

shrikant kh

Member Since: May 2008 Contribution: 1

RE: What is the product of the irrational roots of the equation (2x-1)(2x-3)(2x-5)(2x-7)=9?

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

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June 29, 2008 09:37:19

Mahbubul Haque

Member Since: June 2008 Contribution: 1

RE: What is the product of the irrational roots of the equation (2x-1)(2x-3)(2x-5)(2x-7)=9?

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

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