Question

(3×+у)-(×-4у) (×+6у)-(8×-у)

Answer 1

(3х + У- х + 4у ) ( х+6у - 8х + у)
(2х +5у ) ( 7у - 7х)
14ху - 14 х2 + 35 у2 - 35ху
-14х2 - 21ху + 35у2

Answer 2

(3x+y)-(x-4y)(x+6y)-(x-8y)
Приводим подобные члены:
3x+y-(x2+6xy-4xy-24y2)-x+8y
Раскрываем скобки:
3x+y-(x2-2xy-24y2)-x+8y
Получаем:
2x+9y-x2-2xy+42y2

Answer 3

It seems like your expression contains some missing variables and operators. To provide a simplified result, I'll assume that the missing multiplication symbols are present. Here's the simplified expression:

(3x + y) - (x - 4y) * (x + 6y) - (8x - y)

Now, let's simplify this step by step:

Step 1: Distribute the second term (x - 4y) to the terms inside the parentheses: (3x + y) - (x * x + x * 6y - 4y * x - 4y * 6y) - (8x - y)

Step 2: Simplify the terms obtained from the distribution: (3x + y) - (x^2 + 6xy - 4xy - 24y^2) - (8x - y)

Step 3: Combine like terms: (3x + y) - (x^2 + 2xy - 24y^2) - 8x + y

Step 4: Now, combine all the terms: 3x + y - x^2 - 2xy + 24y^2 - 8x + y

Step 5: Combine like terms again: (3x - 8x) + (y + y) - x^2 - 2xy + 24y^2

Step 6: Simplify further: -5x + 2y - x^2 - 2xy + 24y^2

The simplified expression is: -5x + 2y - x^2 - 2xy + 24y^2.