100x^2-64y^2=

解方程100x^2-64y^2=

解题100x^2-64y^2= 方程

简化
100x2 + -64y2 = 0

解：
100x2 + -64y2 = 0

求解变量 'x'.

移动所有含x 的放右边，所有其它条件放左边.

增加 '64y2' 到方程的每一侧.
100x2 + -64y2 + 64y2 = 0 + 64y2

结合相似条件: -64y2 + 64y2 = 0
100x2 + 0 = 0 + 64y2
100x2 = 0 + 64y2
去掉这个零:
100x2 = 64y2

两边除以 '100'.
x2 = 0.64y2

简化
x2 = 0.64y2

取每边的平方根:
x = {-0.8y, 0.8y}