Question

the roots of the equation x2-x
$( \alpha + \beta ) + ( \alpha \beta ) = 0are$
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Answer 1

x^2 - x( a+ b) + ab= 0

x^2 - xa - xb + ab= 0

x( x-a) -b(x - a)= 0

( x- b)( x-a)= 0

x= b,a