Quad Eqns.

If one root of the equation ax²+bx+c=0 is the square of the other, then a(c-b)³=cX, where X is

(a) a³+b³
(b) (a-b)³
(c) a³-b³
(d) N.O.T

Please show the method ..

2 Answers

341

Hari Shankar ·2014-04-18 03:08:19

466

Himanshu Giria ·2014-04-17 20:16:38

(B)

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Himanshu Giria i used a shortcut method by putting a equ n whose ruts are 2 and 2^2=4 as x^2-6x+8 =0
Upvote·0· Reply ·2014-04-17 20:20:04
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