An equation equivalent to the quadratic equation x2 − 6x + 5 = 0 is :
Correct Answer: | x - 3 | = 2
Explanation:
We can say that ,
The given quadratic equation x2 − 6x + 5 = 0 ⇔ ( x - 5 )( x - 1 ) = 0 ⇔ x = 5 or 1
Now , | x - 3 | = 2 ⇔ ( x - 3 ) = 2 or - ( x - 3 ) = 2 ⇔ x = 3 + 2 = 5 or x = 3 - 2 = 1
∴ x2 - 6x + 5 = 0 and | x - 3 | = 2 are equivalent.