Which statement about the following equation is true?

2x^2 – 9x + 2 = –1
The discriminant is less than 0, so there are two real roots.
The discriminant is less than 0, so there are two complex roots.
The discriminant is greater than 0, so there are two real roots.
The discriminant is greater than 0, so there are two complex roots.

Question

Which statement about the following equation is true?

2x^2 – 9x + 2 = –1
The discriminant is less than 0, so there are two real roots.
The discriminant is less than 0, so there are two complex roots.
The discriminant is greater than 0, so there are two real roots.
The discriminant is greater than 0, so there are two complex roots.

astrophysics · Answer

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anonymous · Answer

add one on both sides to make it a quadratic equation equal to zero then do the discriminant
-9^2 -4(2)(3)
81 - 24
Two real solutions

astrophysics · Answer

Where your problem is of the sort $$ax^2+bx+c = 0$$and discriminant is $$b^2 -4ac$$