Question
Solve the equation. Check the solution.
a/(a^2 - 16) + 2/(a-4) = 2/(a+4)
-16, -4
4
-16, 4
-16
which is the correct answer of the four above
a/(a^2 - 16) + 2/(a-4) = 2/(a+4)
-16, -4
4
-16, 4
-16
which is the correct answer of the four above
Answers
Answered by
Damon
a/(a^2 - 16) + 2/(a-4) = 2/(a+4)
a / [ ( a-4)(a+4)] + 2 (a+4) / [ ( a-4)(a+4)] = 2 (a-4) / [ ( a-4)(a+4)]
a + 2 a + 8 = 2 a - 8
3 a + 8 = 2 a - 8
a = -16
a / [ ( a-4)(a+4)] + 2 (a+4) / [ ( a-4)(a+4)] = 2 (a-4) / [ ( a-4)(a+4)]
a + 2 a + 8 = 2 a - 8
3 a + 8 = 2 a - 8
a = -16
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