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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.

 

4x^2 + 16x + 8

-x^2 + 4x + 5

9x^2 - 6x + 1

2x^2 - 8x + 4

225x^2 - 30x + 9

 Oct 22, 2020
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Find the one where    the discriminant (b^2-4ac) = 0     THAT is the one with nly ONE root

    then use the Quadratic Formula (or factoring) to slve for that root    x = ........

 Oct 22, 2020

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