7/18
4/18
7/18
3/18
16/18
11/18
15/18
36/18
8/18
27/18
12/18
<span>2x^2-3x+104=-3x^2-48x+4
</span>
<span>2x^2-3x+104+3x^2+48x-4 =0
5x^2 + 45x + 100 = 0 / : 5
x^2 + 9x + 20 = 0
D = 9^2 - 4*1*20 = 81 - 80 = 1
VD = V1 = 1
x1 = -9 +1 / 2 = -8/2 = -4
x2 = -9 - 1 / 2 = - 10/2 = -5
</span>
(Z-5)(11z+1)(3z-11)=(11z^2-55z+z-5)(3z-11)=33z^3-162z^2-15z-121
Основное логарифмическое тождество
a ^(loga b) = b
3^(log3 4 + 1) = 3^(log3 4) * 3^1 = 4 * 3 = 12
3^(log3 5 - 3) = 3^(log3 5) * 1/3^3 = 5 /27