8/a+9-4/a+8

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Solution for 8/a+9-4/a+8 equation: 


D( a )

a = 0

a = 0

a = 0

a in (-oo:0) U (0:+oo)

8/a-(4/a)+8+9 = 0

8/a-4*a^-1+8+9 = 0

4*a^-1 = -17 // : 4

a^-1 = -17/4

-1 < 0

1/(a^1) = -17/4 // * a^1

1 = -17/4*a^1 // : -17/4

-4/17 = a^1

a = -4/17

a = -4/17

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