정답
If $D > 0$, 2 distinct real solutions; if $D = 0$, exactly 1 real solution; if $D < 0$, 2 complex/no real solutions.
해설
The discriminant is derived under the radical in the quadratic formula $x = \frac{-b \pm \sqrt{b^2 - 4ac}}{2a}$.
홈 / 라이브러리 / Digital SAT: Comprehensive Practice (Math & Reading-Writing) / AI 플래시카드
For the quadratic equation $ax^2 + bx + c = 0$, what does the discriminant $D = b^2 - 4ac$ determine?
덱 'Digital SAT: Comprehensive Practice (Math & Reading-Writing)'의 플래시카드.