Question

2(x-7)(x+7)= y(y+9)(y-9)

Answer 1

Ответ:

2(x-7)(x+7)=2(x^2+7x-7x-49)=2(x^2-49)=2x^2-98

y(y+9)(y-9)=y(y^2-9y+9y-81)=y(y^2-81)=y^3-81y

Пошаговое объяснение:

Answer 2

Ответ:

Думаю тут всё понятно

Пошаговое объяснение:

Answer 3

It seems like you have an equation involving variables x and y:

2(x - 7)(x + 7) = y(y + 9)(y - 9).

If you're looking to solve for the values of x and y that satisfy this equation, we can start by expanding both sides of the equation and then simplifying:

Expanding the left side: 2(x - 7)(x + 7) = 2(x^2 - 49) = 2x^2 - 98.

Expanding the right side: y(y + 9)(y - 9) = y(y^2 - 81) = y^3 - 81y.

Now our equation is simplified to: 2x^2 - 98 = y^3 - 81y.

To solve for x and y, we would typically need more information, such as additional equations or conditions. As it stands, the equation is a relationship between x and y, but it's not sufficient to uniquely determine their values. If you have any additional information or constraints, please provide them, and I'd be happy to assist you further in solving the equation.