(x-7)/(x+6)+(x+8)/(x+1)

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Solution for (x-7)/(x+6)+(x+8)/(x+1) equation:


D( x )

x+1 = 0

x+6 = 0

x+1 = 0

x+1 = 0

x+1 = 0 // - 1

x = -1

x+6 = 0

x+6 = 0

x+6 = 0 // - 6

x = -6

x in (-oo:-6) U (-6:-1) U (-1:+oo)

(x-7)/(x+6)+(x+8)/(x+1) = 0

((x-7)*(x+1))/((x+6)*(x+1))+((x+8)*(x+6))/((x+6)*(x+1)) = 0

(x-7)*(x+1)+(x+8)*(x+6) = 0

2*x^2+8*x+41 = 0

2*x^2+8*x+41 = 0

2*x^2+8*x+41 = 0

DELTA = 8^2-(2*4*41)

DELTA = -264

DELTA < 0

1 = 0

1/((x+6)*(x+1)) = 0

1/((x+6)*(x+1)) = 0 // * (x+6)*(x+1)

1 = 0

x belongs to the empty set

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