2x^2 + 11x + 34 = (x+6)^2
2x^2 +11x +34 = x^2 + 12x + 36
x^2 - x - 2 = 0
D = 1+ 8 = 9
x1 = (1+ 3)/2 = 2
x2 = (1-3)/2 = -1
Ответ: 2 и -1
2. рис 1.
3. (5⁰ * 25⁻⁷)/(125⁻⁶ * 5¹) = 5⁻¹⁴/(5⁻¹⁸ * 5) = 5⁻¹⁴/5⁻¹⁷ = 5³ = 125
4. 8.3 * 10³ > 7.8 * 10³
1.3 * 10⁻³ < 1.3 * 10⁻²
6.3 * 10⁵ > 6.8 * 10⁻⁵
B-2c+3b+4c-5b = 2c-b вроде так
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