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Q.

The equation formed by increasing each root of 2x2−3x−1=0  by 2 is

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a

2x2+5x+1=0

b

2x2+5x+3=0

c

2x2−11x−18=0

d

2x2−11x+13=0

answer is D.

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Detailed Solution

f(x−2)=0⇒ 2x-22−3x-2−1=0⇒ 2x2−11x+13=0
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