8/(x+1)+7/3x

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Solution for 8/(x+1)+7/3x equation: 


D( x )

x+1 = 0

x+1 = 0

x+1 = 0

x+1 = 0 // - 1

x = -1

x in (-oo:-1) U (-1:+oo)

8/(x+1)+(7/3)*x = 0

8/(x+1)+(7*x)/3 = 0

(3*8)/(3*(x+1))+(7*x*(x+1))/(3*(x+1)) = 0

7*x*(x+1)+3*8 = 0

7*x^2+7*x+24 = 0

7*x^2+7*x+24 = 0

7*x^2+7*x+24 = 0

DELTA = 7^2-(4*7*24)

DELTA = -623

DELTA < 0

1 = 0

1/(3*(x+1)) = 0

1/(3*(x+1)) = 0 // * 3*(x+1)

1 = 0

x belongs to the empty set

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