Question

Solving Quadratics by the Quadratic Formula
-x^2+3x-21=0

Answer 1

Answer: None

1. We look at numbers before „x” or only numbers, to get a, b and c to formula:

a = -1, b = 3, c = -21

2. Replace numbers with formula for discriminant:


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3. And as we know discriminant is a number less than 0, there is no possibility to solve it.

Hope this helps!