(x-4)(x-6)-(x-2)(x+2)=-2

Question

(x-4)(x-6)-(x-2)(x+2)=-2

Answer 1

( Х - 4 )( Х - 6 ) - ( Х - 2 )( Х + 2 ) = - 2
Х^2 - 6х - 4х + 24 - ( х^2 - 4 ) = - 2
Х^2 - 10х + 24 - х^2 + 4 = - 2
- 10х + 28 = - 2
- 10х = - 30
Х = 3