There are two values of \( x \) making the value of
the determinant \( \left|\begin{array}{ccc}1.... VIDEO
There are two values of \( x \) making the value of
P
the determinant \( \left|\begin{array}{ccc}1 & -2 & 5 \\ 2 & \mathrm{x} & -1 \\ 0 & 4 & 2 \mathrm{x}\end{array}\right| \) equal to 86 .
W.
The sum of these two numbers, is
(A) -4
(B) 5
(C) -3
(D) 9
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