Evaluate (complex solution)
x\left(D-1\right)+1=0\text{ and }P=0
Solve for x
x=-\frac{1}{D-1}
D\neq 1\text{ and }P=0\text{ and }D\neq 0
Solve for P
P=0
x=-\frac{1}{D-1}\text{ and }D\neq 1\text{ and }D\neq 0
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