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Question

If A,B are roots of the quadratic equation x2−5x+6=0 then the equation whose roots are A+3 and B+3 is-

A
x211x+30=0
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B
(x3)25(x3)+6=0
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C
Both (A) and (B)
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D
none of these
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Solution

The correct option is C Both (A) and (B)
x25x+6=0rootsareA,Bsumofroots=A+B=5productofroots=AB=6newrootsare(A+3)&(B+3)sum=A+3+B+3=5+6=11product=(A+3)(B+3)=AB+3(A+B)+9=6+15+9=30equation:x2(sumofroots)x+(productofroots)=0x211x+30=0
After simply B also we will get same equation

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