5x^2+6xy+13j^2=

解方程5x^2+6xy+13j^2=

解题5x^2+6xy+13j^2= 方程

简化
5x2 + 6xy + 13j2 = 0

重新排序条件:
13j2 + 6xy + 5x2 = 0

解：
13j2 + 6xy + 5x2 = 0

求解变量 'j'.

移动所有含 j 的条件放右边, 其它所有条件放左边.

增加 '-6xy' 到方程的每一侧.
13j2 + 6xy + -6xy + 5x2 = 0 + -6xy

结合相似条件: 6xy + -6xy = 0
13j2 + 0 + 5x2 = 0 + -6xy
13j2 + 5x2 = 0 + -6xy
去掉这个零:
13j2 + 5x2 = -6xy

增加 '-5x2' 到方程的每一侧.
13j2 + 5x2 + -5x2 = -6xy + -5x2

结合相似条件: 5x2 + -5x2 = 0
13j2 + 0 = -6xy + -5x2
13j2 = -6xy + -5x2

两边除以 '13'.
j2 = -0.4615384615xy + -0.3846153846x2

简化
j2 = -0.4615384615xy + -0.3846153846x2

重新排序条件:
j2 + 0.4615384615xy + 0.3846153846x2 = -0.4615384615xy + 0.4615384615xy + -0.3846153846x2 + 0.3846153846x2

结合相似条件: -0.4615384615xy + 0.4615384615xy = 0.0000000000
j2 + 0.4615384615xy + 0.3846153846x2 = 0.0000000000 + -0.3846153846x2 + 0.3846153846x2
j2 + 0.4615384615xy + 0.3846153846x2 = -0.3846153846x2 + 0.3846153846x2

结合相似条件: -0.3846153846x2 + 0.3846153846x2 = 0.0000000000
j2 + 0.4615384615xy + 0.3846153846x2 = 0.0000000000

无法确定此方程的解.

　更新:20210423 104027

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