F(x) = x^5+1 / 5+1 - 2x^2 / 2 +c
1-18х+81х²=1-2*9х+(9х)²=(1-9х)²
Решение на фото !!!!!!!!!!!!!
log2x+6log2^2x+9log2^3x=14
log2x+6*1\2log2x+9*1\3log2x=14
log2x+3log2x+3log2x=14
log2x+log2x^3+log2x^3=14
log2(x*x^3*x^3)=14
log2x^7=14
x=
<em>Решение приложено</em>
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