1)
a)log3(x)=2
x=3^2
x=9
^-знак степени
c) V(x-5)=-4
Решений нет,т.к. V(x-5)>=0
V-знак корня
2) a)log1/3(x-4)=1
log1/3(x-4)=log1/3(3)=x-4=3
x=7
b)3log4(x)=-6
log4(x)=-2
log4(x)=log4(1/16)
x=1/16
c)10 log3(x)+2=12
10 log3(x)=10
log3(x)=1
x=3
3) a)|x|=2
x=-2; x=2
b)|x|+1/6=1/3
|x|=1/3-1/6
|x|=1/6
x=-1/6; x=1/6
c)-4|x|+2=-8
-4|x|=-8-2
-4|x|=-10
|x|=2,5
x=-2,5; x=2,5
4)a)|x|=2 - уравнение на графике
x=-2; x=2
5)a)(x-2)^3=1
(x-2)^3=1^3
x-2=1
x=3
b)V(2x-3)=2
2x-3=2^2
2x-3=4
2x=7
x=3,5
c)10^(x-1)=0,01
10^(x-1)=10^-2
x-1=-2
x=-1
d)log25(x-3)=1/2
x-3= V25
x-3=5
x=8
e)|x+7/14|=-3/14
Решений нет,т.к.|x+7/14|>=0
1)2x^2(3x-8)+y(3x-4)
2)x^2(x^2-6y)+(3y-4)(3y+4)
3)c(c-20-b(b-4b)-3
Вроде так...
<span>(2а-3) (2а+3)= -5
</span><span>(m - 2n) во второй степени = m во второй степени - 4mn + 4n во второй степени,вроде так)
</span>
Во всех примерах выражение не имеет смысла при знаменателе равном нулю
![a)y-8=0\ \ \ \ \ \ \ b)8g-3=0\ \ \ \ \ \ \ \ \ c)7-19z=0\\y=8\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ g=\frac{3}{8}\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ z=\frac{7}{19}\\\\d)12p-5=0\ \ \ \ e)-14-3u=0\ \ \ \ f)2x-6=0\\p=\frac{5}{12}\ \ \ \ \ \ \ \ \ \ \ \ \ u=-\frac{3}{14}\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ x=3\\\\g)13b-4=0\ \ \ \ \ h)2a+9=0\\b=\frac{4}{13}\ \ \ \ \ \ \ \ \ \ \ \ \ \ a=-4,5](https://tex.z-dn.net/?f=a%29y-8%3D0%5C+%5C+%5C+%5C+%5C+%5C+%5C+b%298g-3%3D0%5C+%5C+%5C+%5C+%5C+%5C+%5C+%5C+%5C+c%297-19z%3D0%5C%5Cy%3D8%5C+%5C+%5C+%5C+%5C+%5C+%5C+%5C+%5C+%5C+%5C+%5C+%5C+%5C+%5C+g%3D%5Cfrac%7B3%7D%7B8%7D%5C+%5C+%5C+%5C+%5C+%5C+%5C+%5C+%5C+%5C+%5C+%5C+%5C+%5C+%5C+%5C+%5C+%5C++z%3D%5Cfrac%7B7%7D%7B19%7D%5C%5C%5C%5Cd%2912p-5%3D0%5C+%5C+%5C+%5C+e%29-14-3u%3D0%5C+%5C+%5C+%5C+f%292x-6%3D0%5C%5Cp%3D%5Cfrac%7B5%7D%7B12%7D%5C+%5C+%5C+%5C+%5C+%5C+%5C+%5C+%5C+%5C+%5C+%5C+%5C+u%3D-%5Cfrac%7B3%7D%7B14%7D%5C+%5C+%5C+%5C+%5C+%5C+%5C+%5C+%5C+%5C+%5C+%5C+%5C+%5C+%5C+x%3D3%5C%5C%5C%5Cg%2913b-4%3D0%5C+%5C+%5C+%5C+%5C+h%292a%2B9%3D0%5C%5Cb%3D%5Cfrac%7B4%7D%7B13%7D%5C+%5C+%5C+%5C+%5C+%5C+%5C+%5C+%5C+%5C+%5C+%5C+%5C+%5C+a%3D-4%2C5)