A quadratic equation has a discriminant of 12. Which could be the equation?

1.) 0 = - x2 + 8x + 2

2.) 0 = 2x2 + 6x + 3

3.) 0 = - x2 + 4x + 1

4.) 0 = 4x2 + 2x + 1

Question

4 May, 12:11

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Answers (1)

Know the Answer?

Devan Brooks · Answer 1

Ax^2 + bx + c = 0, the discriminant

is b^2 - 4ac when I try to solve with option 2

6^2 - 4 (2) (3) = 12

So the answer is 2

A quadratic equation has a discriminant of 12. Which could be the equation?1.) 0 = - x2 + 8x + 22.) 0 = 2x2 + 6x + 33.) 0 = - x2 + 4x + 14.) 0 = 4x2 + 2x + 1