(3x-12)/(x+5)*(x+6)/(2x-8)

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Solution for (3x-12)/(x+5)*(x+6)/(2x-8) equation: 


D( x )

x+5 = 0

2*x-8 = 0

x+5 = 0

x+5 = 0

x+5 = 0 // - 5

x = -5

2*x-8 = 0

2*x-8 = 0

2*x-8 = 0 // + 8

2*x = 8 // : 2

x = 8/2

x = 4

x in (-oo:-5) U (-5:4) U (4:+oo)

(((3*x-12)/(x+5))*(x+6))/(2*x-8) = 0

((3*x-12)*(x+6))/((x+5)*(2*x-8)) = 0

( 3*x-12 )

3*x-12 = 0 // + 12

3*x = 12 // : 3

x = 12/3

x = 4

( x+6 )

x+6 = 0 // - 6

x = -6

x in { 4} 

x = -6

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