Question

2х(х-3) - (2-х)² * 1

Answer 1

Ответ:

x1=6\7 x2=1/7

Объяснение:

Answer 2

Let's simplify the expression step by step:

1. Distribute the negative sign through the second term inside the parentheses:

   -(2 - x)² * 1 = -(4 - 4x + x²) = -4 + 4x - x²

2. Now substitute this result into the original expression:

   2x(x - 3) - (-4 + 4x - x²)

3. Distribute the 2x through the first set of parentheses:

   2x² - 6x - (-4 + 4x - x²)

4. Distribute the negative sign through the second set of parentheses:

   2x² - 6x + 4 - 4x + x²

5. Combine like terms:

   2x² + x² - 6x - 4x + 4

6. Combine the x² terms and the x terms:

   3x² - 10x + 4

So, the simplified expression is:

3x² - 10x + 4