15x+89/(x+5)(x+7)

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Solution for 15x+89/(x+5)(x+7) equation: 


D( x )

x+5 = 0

x+5 = 0

x+5 = 0

x+5 = 0 // - 5

x = -5

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

(89/(x+5))*(x+7)+15*x = 0

(89*(x+7))/(x+5)+15*x = 0

(89*(x+7))/(x+5)+(15*x*(x+5))/(x+5) = 0

89*(x+7)+15*x*(x+5) = 0

15*x^2+164*x+623 = 0

15*x^2+164*x+623 = 0

15*x^2+164*x+623 = 0

DELTA = 164^2-(4*15*623)

DELTA = -10484

DELTA < 0

1 = 0

1/(x+5) = 0

1/(x+5) = 0 // * x+5

1 = 0

x belongs to the empty set

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