Выполните действие. 1)1/y-5/6y= 2)6-4/x+7/x^2=

Предыдущий
вопрос Следующий
вопрос

1) 1/y - 5/6y =

To simplify this expression, we need to find a common denominator for the fractions. The common denominator for y and 6y is 6y.

1/y becomes 6/6y and 5/6y stays the same.

So the expression becomes:

6/6y - 5/6y

Now subtract the fractions:

(6 - 5)/6y = 1/6y

Therefore, 1/y - 5/6y simplifies to 1/6y.

2) 6 - 4/x + 7/x^2 =

To simplify this expression, we need to find a common denominator for the fractions. The common denominator for x and x^2 is x^2.

6 can be written as 6x^2/x^2

-4/x stays the same.

7/x^2 also stays the same.

So the expression becomes:

6x^2/x^2 - 4/x + 7/x^2

Now combine the fractions:

(6x^2 - 4x - 7)/x^2

Therefore, 6 - 4/x + 7/x^2 simplifies to (6x^2 - 4x - 7)/x^2.