Question

(5x - 1)(2x + 7) -5(x + 2) = (2y - 9) (2y-5) - (y + 4) (y - 8) = Заранее спасибо

Answer 1

Ответ:

10X^2 +28X-17

3Y^2 -24Y+77

Объяснение:

Answer 2

(5x‐1)(2x+7)‐5(x+2)=10x²+28x‐17

(2y‐9)(2y‐5)‐(y+4)(y‐8)=y²‐24y+77

Answer 3

To solve the given equation, let's simplify it step by step.

First, let's expand the expressions on both sides of the equation:

(5x - 1)(2x + 7) - 5(x + 2) = (2y - 9)(2y - 5) - (y + 4)(y - 8)

Expanding the left side: (5x)(2x) + (5x)(7) + (-1)(2x) + (-1)(7) - 5(x) - 5(2) = (2y)(2y) + (2y)(-5) + (-9)(2y) + (-9)(-5) - (y)(y) + (y)(-8) + (4)(y) + (4)(-8)

Simplifying further: 10x^2 + 35x - 2x - 7 - 5x - 10 = 4y^2 - 10y - 18y + 45 + y^2 - 8y + 4y - 32

Combining like terms: 10x^2 + 33x - 17 = 4y^2 - 24y + 13

Now let's move all terms to one side of the equation to set it equal to zero:

10x^2 + 33x - 17 - 4y^2 + 24y - 13 = 0

Rearranging the terms: 10x^2 + 33x - 4y^2 + 24y - 30 = 0

This is the simplified form of the given equation.