((x^2-49)/(4x+32))((x+8)/(x-7))

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Solution for ((x^2-49)/(4x+32))((x+8)/(x-7)) equation: 


D( x )

x-7 = 0

4*x+32 = 0

x-7 = 0

x-7 = 0

x-7 = 0 // + 7

x = 7

4*x+32 = 0

4*x+32 = 0

4*x+32 = 0 // - 32

4*x = -32 // : 4

x = -32/4

x = -8

x in (-oo:-8) U (-8:7) U (7:+oo)

((x^2-49)/(4*x+32))*((x+8)/(x-7)) = 0

((x^2-49)*(x+8))/((4*x+32)*(x-7)) = 0

( x+8 )

x+8 = 0 // - 8

x = -8

( x^2-49 )

1*x^2 = 49 // : 1

x^2 = 49

x^2 = 49 // ^ 1/2

abs(x) = 7

x = 7 or x = -7

x in { -8} 

x in { 7} 

x = -7

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