Question

Which of the following equations
has its one of the roots 2 ?
1 x2 - 4x + 5 = 0
2 x2 + 3x – 12 = 0
3 2x2 – 7x + 6 = 0
4 3x2 - 6x - 2 = 0
8:24 pm​

Answer 1

Answer:

3

Step-by-step explanation:

The easiest way is to put x = 2 in each equation and check if you obtain zero as a result.

When you do this, you will get the following values for each equation:

1) 1

2) -2

3) 0

4) -2

Hence Equation 3 is the correct answer.