Question

4(2-x²)-3x(x-3)=8+9x-7x2

Answer 1

Ответ:

вот так, вроде бы

Объяснение:

сначала раскрыли скобки, а потом все ясно, вроде написала разборчиво

Answer 2

To solve the equation 4(2-x²) - 3x(x-3) = 8 + 9x - 7x², you can follow these steps:

1. Distribute and simplify on both sides of the equation:

   8 - 4x² - 3x² + 9x - 27x = 8 + 9x - 7x²

2. Combine like terms on both sides:

   8 - 4x² - 3x² + 9x - 27x = 8 + 9x - 7x²

   -4x² - 3x² + 9x - 27x = 9x - 7x²

3. Combine like terms on both sides:

   -7x² + 9x - 27x = 9x - 7x²

   -10x² - 18x = 9x - 7x²

4. Move all terms to one side of the equation to set the equation equal to 0:

   -10x² - 18x - 9x + 7x² = 0

5. Combine like terms:

   -3x² - 27x = 0

6. Factor out a common factor of -3x from the left side:

   -3x(x + 9) = 0

7. Now, set each factor equal to 0 and solve for x:

   -3x = 0 --> x = 0 x + 9 = 0 --> x = -9

So, the solutions to the equation are x = 0 and x = -9.