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Equations By Viet Dh
Problem 1: Solve equation . Solve: Condition . Equation has no root . We have
Problem 2: Solve equation . Solve: Condition . We have
Setting . Deduce
Thus
. Problem 3: Solve equation . Solve: We have
Setting . Deduce
. .
. Setting . We obtain
Thus
.
Problem 4: Solve equation . Solve: Condition Setting We have
Thus
Setting . We obtain
Deduce
Problem 5: Solve equation . Solve: Condition . We have
Setting
. We obtain
Thus

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