formula_faq_title
formula_faq_1_question
formula_faq_1_answer
formula_faq_2_question
formula_faq_2_answer
formula_faq_3_question
formula_faq_3_answer
formula_faq_4_question
formula_faq_4_answer
三次公式及求解方法
探索三次方程的代数主干。从一般形式到卡尔达诺的历史推导，我们分解了三次多项式的求解方式。
formula_general_form
ax³ + bx² + cx + d = 0
formula_depressed_h2
formula_depressed_p1
t³ + pt + q = 0
formula_depressed_p2
formula_cardano_h2
formula_cardano_p
formula_discriminant
Δ = (q/2)² + (p/3)³
formula_roots_h2
formula_roots_p
- Δ > 0: formula_roots_li1
- Δ = 0: formula_roots_li2
- Δ < 0: formula_roots_li3