1) x* - 5x2 + 4 = 0; 2) x* - 7x2 - 18 = 0; 3) 21 + 8x2 - 9 = 0; 4) х* + 26х2 + 25 = 0; 5) 9x* - 19x2 + 2 = 0; 6) 511 + 312

Вопрос пользователя:

1) x* - 5x2 + 4 = 0; 2) x* - 7x2 - 18 = 0; 3) 21 + 8x2 - 9 = 0; 4) х* + 26х2 + 25 = 0; 5) 9x* - 19x2 + 2 = 0; 6) 511 + 312 - 2 = 0.

Ответ нейросети:

These equations seem to be a mix of quadratic and linear equations. Let's simplify them:

x^2 - 5x + 4 = 0;
x^2 - 7x - 18 = 0;
8x^2 + 12 = 0;
x^2 + 26x + 25 = 0;
9x^2 - 19x + 2 = 0;
This is not an equation, it is an expression that simplifies to 821.

Now, we can solve these equations for x using methods like factoring, completing the square, or the quadratic formula. Let me know if you need help with solving any specific equation.

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