There are 5 quadratics below. Four of them have two distinct roots each. The other has only one distinct root; find the value of that root.

2x^2 - 4x + 8

2x^2 - 12x + 24

-x^2 + 6x + 9

3x^2 - 6x + 3

8x^2 - 4x + 1

Guest Oct 8, 2020

#1**+2 **

To have 1 root the discriminant will = 0 b^{2} - 4ac =0 find which one has that, then use Quadratic Formula to find that root.

ElectricPavlov Oct 8, 2020