b2 - 4ac
(whatever that 4's sign is it is positive when squared )
(4)2 - 4(2)(- 9)
16 + 72 = 88
===============Two real roots.
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The discriminant is -7
The discriminant is 88.
The discriminant is 88 which means that the given quadratic equation has two different solutions for x
The discriminant is 1.
The discriminant is -199.