form a quadratic equation whose roots are 3+√2 and 3-√2
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Step by step explanation:-
As they given,
3+√2 and 3-√2 are roots of Q.E
We have to find Quadratic equation
The required Quadratic equation is
x² -(sum of roots) x + product of roots
Sum of roots =
3+√2 + 3-√2
3 + 3+√2 -√2
6
Sum of roots = 6
Product of roots =
(3+√2 ) (3-√2 )
It is in form of (a+b)(a-b) = a²-b²
So,(3+√2 ) (3-√2) = 3² -(√2 )²
= 9 -2
=7
product of roots = 7
So substuite!!
Required Quadratic equation =
x² -(sum of roots) x + product of roots
x² -(6)x + 7
x² -6x +7
So, Required Quadratic equation whose roots are3+√2 and 3-√2 is x²-6x+7
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