If α, β are roots of the equation 
, write an equation whose roots are 
and 
.
from the given equation sum of the roots α + β = - l
Product of roots αβ = m
Formula to form a quadratic equation is x2- (α + β) x+ αβ = 0
Where α, β are roots of equation.
Given 
are roots, then required quadratic equation is
mx2 – lx + 1 = 0.
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