quadratic

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1. let f(x)=x²+bx+c,where b,c Îµ R.if f(x) is a factor of both x⁴+6x²+25 and 3x⁴+4x²+28x+5,then least value of f(x) is
a. 2 b. 3
c. 5/2 d. 4
2. the number of ordered pair of positive integers x,y such that x²+3y and y²+3x are both perfect squares is

a. 2 b. 3
c. 4 d. 5

please help me with these questions

#Mathematics #Algebra

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4 Answers

62

Lokesh Verma ·2009-03-28 00:17:45

This first was solved by prophet sir yesterday..

I will post the link in a minute..

anyone else who wants to solve it?

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21

tapanmast Vora ·2009-03-28 00:18:23

3P - Q techn. ROCKSSSS!!!

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62

Lokesh Verma ·2009-03-28 00:21:50

http://targetiit.com/iit_jee_forum/posts/quadratic_4035.html

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341

Hari Shankar ·2009-03-28 02:24:29

For 2: http://www.goiit.com/posts/list/algebra-challenging-question-1-72596.htm#358205

(though I dont understand what such problems are doing in a JEE aspirant's course)

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Your Answer

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