A²+2ab+b²..........................
* = -7
у= -7х - 5
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X^2 + 3 - 3 + x = 0
x^2 + x = 0
x (x + 1) = 0
1) x = 0;
2) x + 1 = 0
x = - 1
Ответ
- 1; 0
<span>А)3-2а+5а-11 = 3a - 8</span>
<h3>x³ + 3x²y + 3xy² + y³ = (x + y)³ = (2,5 + 0,5)³ = 3³ = 27</h3><h3><em><u>ОТВЕТ: 27</u></em></h3><h3><em><u /></em></h3>