问题详情

设非齐次线性微分方程yˊ＋P(x)y＝Q(x)有两个不同的解y1(x)，y2(x)，C为任意常数，则该方程的通解是()．
A．C[y1(x)－y2(x)]
B．y1(x)＋C[y1(x)－y2(x)]
C．C[y1(x)＋y2(x)]
D．y1(x)＋C[y1(x)＋y2(x)]请帮忙给出正确答案和分析，谢谢！