Open Question: Use the discriminant to state the number and type of solutions for the quadratic equation 3x^2-x=12?
21:31 Publicado por Flechado16
The discriminant of a quadratic is everything inside the square root sign excluding the square root sign.
so the discriminant is: b^2-4ac
so get the equation into standard form: 3x^2-x-12
plug the equation into the discriminant formula (b^2-4ac)
1^2-4(3)(12)
1-144
-143
since the sqr rt of -143 is imaginary and would be a really long decimal, the answer is A
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