Question

A) 4a + 1/a-1 б) a - 1 - 2-3a/a-2

Answer 1

a)  ответ: 4a^2+1-a / a (Дробью) (Не понял смысл уравнения, возможно ты не правильно его записал. Если это правильно то и ответ верен)

б) ответ: a^2 - 8

Answer 2

To simplify the given expressions, let's work through each one step by step:

A) 4a + 1/(a - 1)

There's not much we can do to simplify this expression further since there are no like terms to combine. So the simplified expression would be:

4a + 1/(a - 1)

B) a - 1 - (2 - 3a)/(a - 2)

To simplify this expression, we'll first find a common denominator for the fraction (2 - 3a)/(a - 2):

The common denominator is (a - 2). So, we need to rewrite the first term (a - 1) with the common denominator:

(a - 1)*(a - 2)/(a - 2)

Now we can combine the two terms:

(a - 1)*(a - 2)/(a - 2) - (2 - 3a)/(a - 2)

Next, we'll combine the fractions:

[(a - 1)*(a - 2) - (2 - 3a)] / (a - 2)

Now let's expand the brackets in the numerator:

(a^2 - 3a + 2) - (2 - 3a) / (a - 2)

Notice that the terms -3a and +3a will cancel each other out:

(a^2 - 3a + 2 - 2 + 3a) / (a - 2)

Simplify further:

(a^2) / (a - 2)

So the simplified expression is:

a^2 / (a - 2)