Question

what should be subtracted from 18/(x^2+x-2) to obtain 6/(x+1)(x+2)​

Answer 1

Answer:

12/(x + 1)(x - 1)

Step-by-step explanation:

18/(x^2 + 2x - x - 2)

18/(x(x + 2) -1(x + 2))

18/(x + 2)(x - 1)

So now,

18/(x + 2)(x - 1) - Ans = 6/(x+1)(x+2)

Ans = 18/(x + 2)(x - 1) - 6/(x+1)(x+2)

= (6/(x + 2)) × (3/(x - 1) - 1/(x + 1))

= 12/(x + 1)(x - 1)

Answer 2

Step-by-step explanation:

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