Quad sums -- part 1

Some very easy quad sums , hope everyone gives a different process -------------

1 > If ( x - a ) ( x - b ) = k has the roots c , d ; then roots of the eqn. ( x - c ) ( x - d ) + k = 0 are --

1 Answers

106

Asish Mahapatra ·2009-12-21 22:06:46

(x-a)(x-b) - k = (x-c)(x-d) (according to Q)

(x-c)(x-d) + k = (x-a)(x-b)

so its roots are a,b

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