6a^5+3a^2y+10a^3y^2-7a^5+14a^3y=a^5+3a^2y+10a^3y^2+14a^3y
12а))
(1/4 + 1/2 + 1)*log(2)(x) = 7
log(2)(x) = 4
x = 2^4 = 16
12в))
log(2) ((log(2)(x))^2) - log(2) (log(2)(x)) = 1
log(2) (log(2)(x)) = 1
log(2)(x) = 2
x = 4
13a))
4*log(2)(x) = 4
log(2)(x) = 1
x = 2
13в))
8*log(2)(x) = 12
log(2)(x) = 12/8 = 3/2
x = 2^(3/2) = V8
-0,3у=30
у=30÷(-0,3)
у=-100
Желаю удачи :)