- #1
Nile3
- 42
- 0
Find the value of x when the matrix equals 3:
|x-2 3|
|x x+1|
so I find the determinant:
(x-2)(x+1)-(x)(3)
x^2-4x-2
How do I find which values are giving 3 from here?
|x-2 3|
|x x+1|
so I find the determinant:
(x-2)(x+1)-(x)(3)
x^2-4x-2
How do I find which values are giving 3 from here?