Decades: 1970s 1980s 1990s 2000s 2010s - 2020s - 2030s 2040s 2050s 2060s 2070s
Years: 2017 2018 2019 2020 2021 - 2022 - 2023 2024 2025 2026 2027
Events
Births
Deaths
... + \left( \frac{b}{a} \right) x + \frac{c}{a}=0 </math> which is equivalent to <math>x^2+\frac{b}{a}x=-\frac{c}{a}.</math> The equation is ...