If p = (x+3x+2x+1x−1) ( x + 3 x + 2 x + 1 x − 1 ) evaluate x if |p| = -10

Question 1 Report

If p = $(\begin{matrix} x + 3 & x + 2 \\ x + 1 & x - 1 \end{matrix})$ evaluate x if |p| = -10

-5

-2

Answer Details

If p =

(\begin{matrix} x + 3 & x + 2 \\ x + 1 & x - 1 \end{matrix})

evaluate x if |p| = -10
|P| = (x + 3)(x - 1) - (x + 2)(x + 1)
x2 + 2x - 3 - (x2 + 3x + 2)
x2 + 2x - 3 - x2 - 3x - 2
-x - 5 = -10
-x = -10 + 5
x = 5

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