4m 2m+1 2m-1
⁻⁻⁻⁻⁻⁻ -⁻⁻⁻⁻⁻⁻⁻⁻ + ⁻⁻⁻⁻⁻⁻⁻⁻ =
4m²-1 6m-3 4m+2
1 2 1
⁻⁻⁻⁻⁻⁻⁻ - ⁻⁻⁻⁻⁻⁻ + ⁻⁻⁻⁻⁻⁻⁻⁻ =
(x+y)² x²-y² (x-y)²
решите примеры по действиям и распишите
Ответы
4 * m 2 * m + 1 2 * m - 1
-------------- - ------------- + ------------- =
4 * m² - 1 6 * m - 3 4 * m + 2
4 * m * 6 - (2 * m + 1) * 2 * (2 * m + 1) + 3 * (2 * m - 1) * (2 * m - 1)
------------------------------------------------------------------------------------ =
6 * (2 * m - 1) * (2 * m + 1)
24 * m - 2 * (4 * m² + 4 * m + 1) + 3 * (4 * m² - 4 * m + 1)
------------------------------------------------------------------------ =
6 * (2 * m - 1) * (2 * m + 1)
24 * m - 8 * m² - 8 * m - 2 + 12 * m² - 12 * m + 3 4 * m² + 4 * m + 1
------------------------------------------------------------ = ----------------------------------- =
6 * (2 * m - 1) * (2 * m + 1) 6 * (2 * m - 1) * (2 * m + 1)
(2 * m + 1)² 2 * m + 1
------------------------------------ = ----------------
6 * (2 * m - 1) * (2 * m + 1) 12 * m - 6
1 2 1 (X - Y)² - 2 * (X² - Y²) + (X + Y)²
----------- - ----------- + ----------- = ---------------------------------------- =
(X + Y)² X² - Y² (X - Y)² (X - Y)² * (X + Y)²
X² - 2 * X * Y + Y² - 2 * (X² - Y²) + X² + 2 * X * Y + Y² 4 * Y²
---------------------------------------------------------------- = ------------------------
(X - Y)² * (X + Y)² (X - Y)² * (X + Y)²