MCQ
Which of the following equations has $2$ as a root ?
- ✓$ 2 x^2-7 x+6=0 $
- B$ x^2-4 x+5=0 $
- C$ 3 x^2-6 x-2=0 $
- D$ x^2+3 x-12=0 $
✓
Answer
Correct option: A.
$ 2 x^2-7 x+6=0 $
Given $, 2 x^2-7 x+6=0 $
If $2$ satisfies the above equation then $2$ is a root.
Now $,2(2)^2- 7(2) + 6 = 0$
$\therefore 2$ is a root of this equation
If $2$ satisfies the above equation then $2$ is a root.
Now $,2(2)^2- 7(2) + 6 = 0$
$\therefore 2$ is a root of this equation
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