Decades: 2020s 2030s 2040s 2050s 2060s - 2070s - 2080s 2090s 2100s 2110s 2120s
Years: 2070[?] 2071[?] 2072[?] 2073[?] 2074[?] 2075[?] 2076 2077[?] 2078[?] 2079[?]
... the square[?]. <math>ax^2+bx+c=0</math> Dividing our quadratic equation by a, we have <math> x^2 + \left( \frac{b}{a} \right) x + ...