4/y+2-3/y-2+12/y^2-4

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вопрос

To simplify the expression 4/y + 2 - 3/y - 2 + 12/y^2 - 4, we need to combine the like terms and simplify wherever possible.

First, let's rewrite the expression with like terms together
(4/y - 3/y) + 2 - 2 + 12/y^2 - 4

Now, combine the like terms
(1/y) + 2 + 12/y^2 - 4

To add the fractions, we need a common denominator
(1/y) + 2(y/y) + 12/y^2 - 4(y^2/y^2
(1/y) + 2y/y + 12/y^2 - 4

Now simplify
(1/y) + 2 + 12/y^2 -
1/y + 2 + 12/y^2 - 4

Therefore, the simplified expression is 1/y + 2 + 12/y^2 - 4.