Solve for $x$ given the following equation involving a determinant.
$$\left| \begin{array} { c c }
x + 1 & 7 \
- 1 & x + 9
\end{array} \right| = 0$$
A) $x = 8,2$
B) $x = - 9 , - 1$
C) $x = 9,1$
D) $x = - 8 , - 2$
E) $x = 8 , - 7$

Question

Solve for $x$ given the following equation involving a determinant.
$$\left| \begin{array} { c c } 
x + 1 & 7 \
- 1 & x + 9
\end{array} \right| = 0$$
A) $x = 8,2$
B) $x = - 9 , - 1$
C) $x = 9,1$
D) $x = - 8 , - 2$
E) $x = 8 , - 7$

Quizplus · Accepted Answer

The Answer of Solve for $x$ given the following equation involving a determinant.
$$\left| \begin{array} { c c } 
x + 1 & 7 \
- 1 & x + 9
\end{array} \right| = 0$$
A) $x = 8,2$
B) $x = - 9 , - 1$
C) $x = 9,1$
D) $x = - 8 , - 2$
E) $x = 8 , - 7$

Solve For xxx Given the Following Equation Involving a Determinant ∣x+17−1x+9∣=0\left| \begin{array} { c c } x + 1 & 7 \\- 1 & x + 9\end{array} \right| = 0​x+1−1​7x+9​​=0

Solve For $x$ Given the Following Equation Involving a Determinant $\left| \begin{array} { c c } x + 1 & 7 \\- 1 & x + 9\end{array} \right| = 0$