Question

IF A
x+4 2 1
7 3 2
8 2 3
!A! = 0, then x​

Answer 1

Step-by-step explanation:

2

x+4

−2

x+2

=3⇒2

4

.2

x

−2

2

.2

x

=3

⇒16.2

x

−4.2

x

=3⇒2

x

(16−4)=3

2

x

=

12

3

⇒2

x

=

4

1

⇒2

x

=2

−2

⇒x=−2

Answer 2

IF A

x+4 2 1

7 3 2

8 2 3

!A! = 0, then x

Answer of this question is - 2