quadratic equation

剑桥词典

an equation that includes an unknown value that is multiplied by itself only once , and does not include an unknown value multiplied by itself more than once
二次方程式
In the quadratic equation , 2y2+3y=14, y=2 or y=-3½. 在二次方程式2y2+3y=14中，y=2或y=-3½。 返回 quadratic equation