Question

А+1/а^2-аb-1-b/b^2-ab

Answer 1

Надеюсь всё понятно написано писал мой брат))))))))

Answer 2

To simplify the expression A + 1 / (a^2 - ab - 1) - (b / (b^2 - ab)), we need to find a common denominator and combine the terms. Let's go step by step:

Step 1: Find a common denominator for the fractions. In this case, the common denominator is (a^2 - ab - 1) * (b^2 - ab).

Step 2: Rewrite the expression with the common denominator:

A * (b^2 - ab) / [(a^2 - ab - 1) * (b^2 - ab)] + (1 * (b^2 - ab)) / [(a^2 - ab - 1) * (b^2 - ab)] - (b * (a^2 - ab - 1)) / [(a^2 - ab - 1) * (b^2 - ab)]

Step 3: Combine the terms:

(A * (b^2 - ab) + (b^2 - ab) - b * (a^2 - ab - 1)) / [(a^2 - ab - 1) * (b^2 - ab)]

Step 4: Simplify the numerator:

(A * b^2 - A * ab + b^2 - ab - b * a^2 + b^2 * ab - b) / [(a^2 - ab - 1) * (b^2 - ab)]

Step 5: Combine like terms:

(A * b^2 - A * ab - b * a^2 + 2 * b^2 * ab - ab - b) / [(a^2 - ab - 1) * (b^2 - ab)]

And that's the simplified expression for A + 1 / (a^2 - ab - 1) - (b / (b^2 - ab)).